The future of decentralization is uncertain but as we know many uses it already in any kind of sectors, many country implement decentralized system already too. While these crypto founders will always promote their services/blockchain/business but will always empower the use case of crypto especially bitcoin because thats where they get profit the most.
I don't know why people think these crypto businessmen like BTC, if they do, they would educate people how to use BTC the right way, and that is to move their funds into self custody after every successful trade, but how are they going to make money if they don't have billions of their customers money to gamble with.
It's the users choice, they just provide services where most convenient use can be. Besides most of their site's service have faq/blog pages to educate regarding bitcoin, their tokens and other blockchain/crypto.