Through apologetics it has helped me understand the difference between religion and faith, and understanding more about both is very important. If there is no understanding then what can I stand for? If I am not standing for anything am I really alive? I could go on....
To address your question, education helped me see the flaws with in myself so that I could grow spiritually. Other people's flaws are not something I need to concern myself with, But I can offer help.
here is a quote from a personal friend of mine,"I can't, he can, I choose to let him."
It is something I think of often.