You know, those sorts of questions would pass though my head from time to time until I met a rather innately insightful religious man.
He expressed to me his reluctance to know philosophy in not so many words. And in our conversation, I came to understand, that, even though philosophy provides us with reasonable truth, reasonable truth is not something that everyone is ready for, is not as important, for others, as some other thing, and/or is found by different means. So, though, uncomfortable as it is to watch others go in directions that you would not choose for yourself (because of your study of philosophy), it is sometimes better to respect their choices. Pushing them may inspire resentment of you (which won't help your cause) and/or may cause them harm (think of pushing someone into the deep end of a pool before they have learned how to swim).
Additionally, sometimes telling someone the answer is not enough, convincing them by argument is not enough. They have to learn by trial and error in order to internalize what can be read or told to them.
I suspect that the best you can do is act
in line with what philosophy has taught you and, in this way, others may learn what you know by your example.