Well, there was certainly no mental effort involved in your post...
You're right, please let me up my effort a bit and say there's no way I'd ever want to offend you because I'm fully aware that you're a decent person and not a Marxist.
We both know that a manager works hard and that most owners are managers who are not simply (as Marx would say) exploiting the workers. The thing is that there are non-managing owners who also do difficult work such as raising cash for funding company expansion and operation. Most don't get a salary, but they've still got to be rewarded somehow or else nobody gets paid.