I do not agree that people need to be ordained to become Enlightened in 1 lifetime. Mind you, I am not trying to put anyone down but there are Sanghas who are not 100% 'right'.
During these modern times, people are easily distracted from spiritual path. So many obstacles and habituations that we created for ourselves. Like what Vajratruth said, a layperson can also bring Dharma to many people as it is easier to approach to different groups of people.
Transform ourselves, practice the Dharma and benefit more people thru our compassion for them and ourselves for Dharma is something we can take away with us when we die. And karma as well of course...