Isn't the focus of blockchain decentralization? Why are takeovers and contorted algorithms even news in this landscape?

Will there be a community like steemit that is not privy to the tendency of the greed of humans in the future?

I enjoy Steemit and the neutral platform and ideals it represents. I'm just confused as to why there are so many power struggles in a technology that is innately designed to be decentralized.

How can we remove the ability for abuse? What algorithm will stop abuse, even by magnates and whales.