Bitcoin Core have slow progress, everything that doesn't have money have slow progress
Bitcoin Core has no money? Bitcoin Core
is money. I get what you mean, but it isn't always about money, it's about incentive. Whoever works for improving Bitcoin Core isn't paid (although they do get donations), but there's incentive to make your own, self-controlled money work better.
People who have not commited any crimes in the past have went to prison. Ross Ulbricht went to prison because he was willing to show everyone that bitcoin can function as a payment mechanism for merchants and to exchange goods and services.
Ross is known for creating the most popular drug marketplace in the dark net. I'm sure he went to prison because of that.