It's worth to know that nobody is ever infallible. I've always thought that same thing, "I'm a good guy.". But I've learned that it's better to think, "i may think I'm a good guy, but I need to be careful about how I come off," because I have said some fucked up things without realizing it.
Like, I have genuinely made some people uncomfortable without me realizing it, and I've been trying hard to be more aware of not only the situation I'm putting someone in, but the vibes I'm giving off.