I prefer the phrasing, "It takes money to make money."
Maybe we could try one of those other systems that has always failed? Do it somehow differently, and see if we can avoid the problem of running out of other people's money?
Avoiding the problem of running out of other people's money is generally how wealth is gained. It really only differs in how happy you make them about parting with it, and how much you have to fool them to do so.
I prefer the phrasing "the rich get richer" as it applies to systems without money, I think it causes the failure of a lot of systems, as well as the repeated failure of the most popular.
The rich are the people who made money. They know how to make money, so that is what they do, they make more money. The poor do not know how to make money, so they don't or else they would be rich.