Expedia has the lion's share of the credit reporting business. There are two other credit reporting agencies, Transunion and Equifax. They typically all gather information from the same places.

The added value of having a decentralized credit score is that it can potentially give access to credit for people unable to get it in the traditional market. People with bad credit suffer from predatory rates for events that may have occurred far in their past. This doesn't mean that someone couldn't have a low decentralized score, but it opens the door to new ideas and opportunities.

The lending pool doesn't have to be one centralized bank. Their are multiple lending platforms in decentralized finance. The pools are made up from different lenders.

You do raise a good point about centralizing within a few blockchains. However, as time and adoption increases, I don't see why there can't be multiple applications on different applications.

It's not about workers of the world uniting. It's about using technology to cut out the middle man who is nickel and diming us all to death. On top of that, these same institutions have corrupt and manipulative practices. The government does nothing about it except issue fines. Why is it so bad looking for alternatives?