Blockchain and decentralized applications

After 18 days of diving deep into crypto, I didn't come out of it a decentralization maxi. There's space for both types of software, community, and utility. In many ways decentralized software really needs centralization: spam, fraud, content rights, powerful programs, etc.

If we create a world of more exclusive groups based on even more exclusive assets what have we really done for humanity? Is this what we are calling decentralization?