Regardless of how far and wide you search I don't believe you will never find a form of domination as all encompassing and intimate as financial domination. A form of domination that continues to impact both master and slave even long past the actual act. It is not restricted to the bedroom or individual session, but has real world impact on the lives of both master and slave.
With such heavy impact, you attract types of individuals of differing extremes. On one end, men ("Alphas" and "fags") who view it as fantasy for quick cash or flakes who do little but talk with no commitment. And then theres those on the other end of which financial domination is an intoxicating aphrodisiac you can't resist and desperately wish to go deeper and deeper. Growing an addiction to this more permanent and impactful form of submission/domination. And when you find a match who's as invested in it as you, you can craft a deeply intimate relationship that feeds the other's addiction. A Cashmaster feeding their fag's desperate need for fulfilment, purpose and hunger for praise. And a fag feeding their Cashmaster's growing sadism and ego to the point where neither can find satisfaction without the real world reach of financial domination.