It's not that Indian culture somehow isn't as good. It's that there's sufficient supply there to fill all the positions at lower pay. If the exact same people manage to get a visa and transfer to SF, they will instantly start getting paid $100,000s more. Likewise, If Google moves an entire org, doing all the exact same work, from NYC to Raleigh, NC, it will cut everyone's pay by 25%.
I personally am moving from completely remote to completely remote but from somewhere else, specifically because my company pays more than the difference in CoL so it's "free" for me. From the company's point of view, I just became more expensive for no reason and at no gain to them, but that's their policy so ¯\_(ツ)_/¯
