It bugs me how I've read stories where a character comes to a major realization, often about life in general, says they're changed, and then goes on to live their life in essentially the same way, with only minor tweaks.
A large section of the Bhagavad Gita talks about existence in Buddhist sort of tones, and then talks about how you should do what society deems to be your duty anyway.
It's one thing to realize that what you were already doing is the right thing, and to do it, now secure in the knowledge that it's right.
But to learn something monumental and to act as if your old way of living is truly the best of all possible ways seems to me to be either stupidity or arrogance, and not the good kind.