What is up with this games jacked up mastery system?

This games mastery system... unlike Smite... HoTS.... Even Dota 2... Any other moba... literally makes you farm for chests and crap instead of rewarding you for mastering a champion with you know... rewards. I guess an already multi-billion dollar gaming company can't give IP / RP rewards or something like Smite or Gold rewards like HoTS and instead makes you need chests which I can only assume is in an attempt to get people to buy more RP. Wtf? Really? Like... Really? How does that display mastery? Not only that, but the mastery system is not emotionally rewarding either, and means nothing, unlike other moba's which require a mastery in order to play that champion in ranked... These games with a FRACTION of your revenue can afford to part with free gems (smite), gold (hots), items (dota 2)... yet you... a multi-billion dollar company not only are attempting to collect more income, but also not giving actual rewards. You officially have won the most corrupt gaming company in the world. I hope you hate yourselves deep down.