Oh why not??? Even though the Chinese Govt may not have the best motivation for restoring temples and monasteries, I am sure they still collect some great amount of merits that will create the causes for the country and nation to prosper and because of the causes they create, they eventually will reap good fortune... obtaining the Dharma. So definitely restoring which is similar to building a monastery will have it's long term positive effect. This is the beginning of China being on of the most powerful nation in the world in secular as well as spiritual as predicted. Below is an extract from a Lama Yeshe Wisdom Archive on the benefits of build a monastery/temple by Lama Zopa
Many great holy beings built and established great and small monasteries. Lama Tsongkhapa and Lama Tsongkhapa’s disciples, and disciples of disciples, built Sera, Ganden and Drepung, within each of which there are two colleges, then also Tashi Lhunpo Monastery, then the two tantra colleges. From disciple to disciple they built like this. These are the main monasteries, but there are many branches, Kumbum Monastery, the disciples built, then also there is Tashi Choeling, in Amdo.
Due to Lama Tsongkhapa’s kindness the disciples built these monasteries where Lama Tsongkhapa introduced an incredible, unique way of studying the entire teachings of the Buddha, the sutras condensed into five major philosophical texts then, after that, tantra. The Vinaya, Madhyamaka, then logic, Pramanavartika, then Abhisamayalamakara and Abhidharmakosha—this very extensive study of sutra which helps very much to develop understanding, then extensive study of tantra.
Due to that kindness, up till now, many monasteries were established from these main monasteries—many, many branches. That’s one example, through Lama Tsongkhapa’s kindness, but of course there are many other traditions as well. Until now the teachings of Buddha still exist in that way, through the beautiful work of these monasteries.
It is said in one sutra: “Establish hope (having texts of all Buddha’s teachings), then continue food offering to the Sangha, providing rooms and bedding—all the needs of the Sangha.” This is said in the sutra by Buddha. It is said that providing these things is a great way to collect merit. The great Mongolian Lama, Zahi Pandita said,
“Among causal phenomena, the virtue of establishing monasteries is the greatest. There is no greater than that.” Lama Atisha told the same to Dromtonpa.
In the sutra, Mindfulness, Buddha’s teaching, it is mentioned that making statues, temples and places for Sangha, with bedding and other needs, makes one’s life go from happiness to happiness. All the future lives will be always in happiness, going from virtue to virtue, always positive; not just being born human and having ordinary pleasures, not just that—
virtue to virtue means having a virtuous life. Even for 1000 ten million eons the virtue collected by having provided these things will never get lost; so you see, it is unbelievable merit.As Buddha advised King Sangyal regarding the benefits of building monasteries. “Any human being building Buddha’s temple, even while still in samsara, in future lives will always have incredible wealth, like radiating palaces, like the king of devas.” That includes power and so forth. “In all the lives you will have happiness, will get good rebirth, and will create good karma in the next lives. While experiencing the result for ten millions of eons, all the time you will enjoy your life, with joyful mind, with no sorrow, and in the end will achieve the state of peace, the cessation of suffering and its causes.”
Then also in the sutra it says, showing the ripening aspect result of the karma, “Anybody who builds a temple, without doubt in the future lives will become king. You will do the work for many transmigratory beings, many sentient beings.” Then, “You are harmonious with all sentient beings,” everybody is harmonious with you, they like you. If everybody is harmonious with you, you can benefit them, bring them to enlightenment.
Also the great Indian yogi, Nagden Pawo said, “To establish a temple for the mighty aryan beings (Sangha) of Shakyamuni Buddha, soothing somebody with the words, ‘please help to build,’ ‘please donate,’ ‘please give a hand with the work’…”—
any group of people who help to build a monastery, even during sleep, while standing up, eating, whatever they do, the merit of building the temple continuously increases, immeasurably.Another Indian pundit, whose name I am not sure of, mentioned, “Even the insects that get killed under the feet, under the rocks or whatever, during the building of a temple, because the temple is the hall of the Buddha, will never get reborn in lower realms, they will be reborn in higher realms, such as the devas. Why? Because they died for the work of a temple of Buddha.” This is mainly due to the power of Buddha having ceased all the gross and subtle defilements and having completed all the realizations, due to Buddha’s inconceivable qualities. It is said that even the negative karma of anyone who is touched by the smoke from food being cooked for the workers gets purified. Again, it is the power of Buddha.
http://www.lamayeshe.com/?sect=article&id=219