Can a mistake be so big, that the one who did will never have your respect again?

[Der/die AtheistIn]

If it's an honest mistake. Something that was never intended, more than likely, I wouldn't lose respect in the first place.

Well, I did lose respect for 2 people who did a huge mistake, not all the respect, but a lot of it. But it was a really stupid mistake on their part and they never realised the harm they caused me. Granted, I never told them, but only because I'm still financially dependent on those people and I don't want to take risks. Also, it should've been extremely obvious to them that they should've never done that. I shouldn't be the one telling them that this was wrong, but I'm afraid I'll have to do it in the future.