I work long hours.
I work with a guy who doesn't. He won't stretch himself at all.
I overheard heard him telling another guy that he'd work as much as I do if he got paid what I get paid.
And there's the problem.
I worked just as much and as hard back when I got paid a third of what i get paid now and maybe that's why my salary has increased like it has. I've always been willing to work.
A person who works hard for 30k per year or whatever will probably work hard for 100k per year too.