Why are people so hyped up about big, rich companies and individuals buying a lot of crypto?

It's actually a bad thing in my opinion. Imagine what will happen when they are going to hold 40-50% of the total supply? They will be able to manipulate the heck out of it.

People think that crypto will change things for the better and it might. But what we are seeing happening right now is basically a new version of digital/crypto Wall Street growing in front of our own eyes with only few big boys at the table.

I really don't know why each purchase that is announced by Greyscale, Cathie Wood or others is so hyped here? With each large purchase crypto becomes more and more centralised. How is this good for crypto?