Bitcoin is the valuable asset that it is today because it's creator Satoshi Nakamoto, decided to practice what he created Bitcoin to be, and that is a decentralized digital currency. His anonymity has proven that he wants Bitcoin holders to be in total control of their asset, no centralized authority or even him can claim ownership of Bitcoin or it's network. Every aspects of Bitcoin are controlled by people whom you and I don't have to know, so there's no intimidation about the influence of the creator or people that runs the network. I hope that Satoshi, continues to remain anonymous to proof that Bitcoin is truly decentralized.
Not really, here's the Bitcoin pools
https://hashrateindex.com/hashrate/poolsNow we're all know the each name of the pools except the others, we can search the company and find who work on that company on their website. Not to mention Bitcoin developers are mostly getting donation from centralized exchanges and institutions.
I believe there's big or less influence to the developers.