i am laughing.
maybe you should do some research next time

crunchbase should be a start point for you. where you can start to see where all the money flows
its not about them buying btc for the VC to hold. its more for buying bitcoin companies where the companies want to be paid in BTC.

also VC's do invest to get rich. this is to KEEP their pockets full even when they are handing out the cheques, again they do it directly and indirectly.
but first you need to understand them before you can understand their actions and the reactions caused by them. which is where i think you are having issues with.
but i have attempted to help by giving you a few tips on where to begin your research.

i do understand your frustration that dev teams stopped innovating bitcoin and turned their mind to try being economists by saying bitcoin should just be a value store and other networks should be the payment utility.
(but btc cant be a value store if it has no utility to grow desire to grow the production(mining)cost to keep the base value rising)

but once you get passed all the mumbo jumbo of knowing the devs got bought out/bribed by investors. the solution is to now concentrate on the direct effect on bitcoin, which can change if we had other new dev teams on bitcoins network making full nodes to not just rely on one teams software base.