The intentions of wall street in the crypto space.

This whole time I have truly believed that entities like JP Morgan and Goldman Sachs claiming Bitcoin and crypto is a scam, while also stocking up is clear evidence that they realize they can no longer control the supply of an asset, and have no other choice than to stock up as much as possible to mitigate this inevitable redistribution of wealth as much as possible. With that said, I have never doubted the intrinsic value of bitcoin and this whole space, but can't help to wonder if there is enough money out there to influence this enough in a negative way. Does that matter? Is there any true reason for concern on the ground of wall streets involvement in bitcoin not so much for the every day investor, but the well-being of bitcoin in general considering its intentions?