Thought of this a while back and can't see anything wrong with it. People make their money a number of ways but it all ties back to what they invest in. Business venture, stock, education, lottery ticket, etc...
I suppose in the simplest form this could be true
But then again, it's not a priority for some people to have a lot of money
Educators for example have invested time in receiving an education and they invest time at work.
Yet they aren't rich because their income doesn't allow for it