Sadist Jas said it all, it takes time and patience really to find the one worth your time and efforts to build something lasting.
Been a sub into femdom & findom since 2006 when findom was far from mainstream and seen somewhat in a sneer way by most bdsm communities (Collarme, Sklavenzentrale, etc. etc.) and i can say i have had 2 lasting and fulfilling femdom&findom relationships for several years, and it made me grow as well so it was not just giving 100% and not receiving anything.
But i do think findom having become mainstream has ruined it for lots of people.. even the most serious subs will get tested and maybe fold from time to time when a new domme reaches out aggressively to him while he is actually serving or in talks with another.. just saying.. been there, done that..