You're tripping. Oculus already moneyhatted Insomniac and will do so for other high tier devs. They have facebook bankroll and more to lose than Sony does on VR.
A couple high profile games won't get most people to buy a PC + a VR solution in the same way that a couple high profile games might get people who already own a PS4 to decide to get a PSVR unit.
In case that isn't clear, what I'm saying is that I think the success of the VR market is greatly dependent on it being 'easy' to both buy, install, and play. The benefits of console are great here -- we know right now you'll be able to just buy a PSVR, plug it in, and it'll play any PSVR game with no significant fiddling, just like any PS4 game plays PS4 games.
That's really important to many people. I'm sure PC VR solutions would potentially provide a better experience given better PC hardware, but that requires all of the hurdles, both real and imagined, that come with PC ownership.
I know I'm not going to go out and buy a $1000 pc for any reason. But... I already have a PS4. Sony needs to [and clearly will attempt to] capitalize on the fact that anyone with a PS4 can get VR easily.
I don't think games matter as much as some do. Sure, you need some good ones. But GTA6 in PC VR still isn't going to get 'the mainstream' to go out and spend ~$1500 to get a PC + VR solution. It might get people who already own a PS4 to get a unit though... which has more mainstream potential than people who already own a powerful enough PC.