Unfortunately this doesn't mean much these days... some of the stuff I've seen done by "professionals" you almost wouldn't believe if you didn't see it. Everyone makes mistakes, but it sucks when people don't admit to it or try and hide it, instead of trying to make it right.
Yes your statement is 100% accurate . I trust no one to work on my things unless I am completely confident in their abilities. I do most of my own work. Especially working on my bike. I'm anal when it comes to riding on a track. Somethings are impossible to predict if a component is compromised.
But being an honest person and owning your personal reputation and name should be above everything. I like most of us work very hard to have just a few moments in life to be special. Clowns like that leave long lasting impressions. Is it so hard to be a good human? I like to think it isn't but dam it seems that way