I love it when The Management here takes exception to my thoroughness by saying, "I don't think many bike shops bother to do it that well."
Other people's standards aren't my business. I get paid to straighten out other people's crap, not add to it.
We can argue for hours about the relative economic merits of doing a good job as opposed to shoving it through any old way we can. But I repeat: other people's low standards should not set ours. But I'm not in charge, there's only one of me, and limited time to work. I can't fix them all.