I don't agree with some of your ravings but you are spot on this time.If you're going to put out a £1000+ GPUs at least put some multi-million pound investment into developing games/creating new studios that take full advantage of the hardware.
Asking a £1000+ just to play souped up console ports at higher resolution/frame rate is just an act of lunacy.
Nvidia make so much money from selling GPU's, if they made games that were PC only that took full advantage of their hardware they would get more people into PC gaming and it would help sell their RTX stuff also.
Maybe there is a legal reason or the numbers do not add up to make it an worthwhile investment? They should just buy Crytek, probably would be silly cheap now. They could make a new Crysis game