I wonder if it's not a bit like the Dunning-Kruger effect. The good people around us struggle thinking that they're bad, while the bad people blithely go around thinking they're good.
That is a really interesting thought. Thank you. Now that you mention it, I'm thinking that having a conscience means getting "false alarms" sometimes. One way some people choose to prevent that is to disable the alarm instead of fixing the actual problem. I'm sure anyone who has worked in tech for any amount of time has seen the literal form of that.