if asked how much, I can only answer as much as possible, but if the current situation can attract new investors even if they invest in small capital, but the number of investors may be a lot of influence on price increases, besides that we must continue to provide support and motivation for the old bitcoin holders are not tempted to sell bitcoin at least in the near future, and also actually if it is possible bitcoin attracts large companies or millionaires to join here, maybe it's good we continue to convey positive information about bitcoin and suppress the existence of FUD even though this it has reduced its influence but at least this is one of the efforts we can do to pump prices back up again
I think they are quite different stuff. If you have money (enough money) than you do not need influence and if you have enough influence over people than you do not need money. Now money is "easier" part, not that its easier to have that much money but it is easier for me to explain honestly.
If you have couple hundred million dollars that you can spend on bitcoin that is enough to actually put stuff over the ressistance or support, whenever bitcoin is close to one of them you can spend some money to throw it to the other side and it will keep moving that side quickly.
Influence on the other hand is a difficult one. Crypto currency world is a very decentralized world, we are so decentralized that we can't really trust on anyone and there are really very few people that could change the crypto world. Maybe if satoshi comesback and says something but we may not even believe that, maybe vitalik could say something that would drop ethereum but even that could be temporary.