Integrity is choosing your thoughts and actions based on values rather than personal gain. You need integrity to STAY in God. Because whatever you do for your personal gain will KEEP you in pride not in CHRIST.
There's two things I judge harshly on. The inability for one to admit when they are wrong, and lack of courage to say I'm sorry. That tells me all I need to know. Because we are all wrong at some point. But not all of us are sorry.