Even if Asia IT jobs were to pay higher than US, US is still spearheading industry best practices. I’m in the financial IT space, but see similar patterns in other IT sectors.
It’s revenue share, stupid.
The more revenue a country office generates, the more budget it controls. The office usually prefers onsite development team, so that team tends to become the hotbed of innovation. For a foreseeable future, NY and London will be the hotbeds.