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.
The only people who are mad at you for speaking the truth are those people who are living a lie. Keep speaking the truth. Some people believe their own truth, just because they can't handle a person with a borderline personality.
Characterize people by their actions and you will never be fooled by their words. PP: People always have the capacity to "say what you want to hear" but true colors are in actions and sometimes lack of actions.