"Rockstars" make tens/hundreds of millions or even billions. A good software engineer can make as much as a doctor (in the US) or accountant. You don't have to be a rockstar to be a 400k/year accountant.
The pay in tech has never been high enough to justify the sort of extreme talent competition in sports and hollywood. Even some of the greatest software engineers (e.g. Guido Van Rossum) are paid pretty modestly in the low seven figure range.
Real world Rockstars like Taylor Swift live a glamorous lifestyle, travel the world, and tend to work short, 2-3 hour gigs. Nobody with a rockstar personality is going to sit in a flourescently-lit office building staring at screen for 8 hours a day. No matter how many ping pong tables and free kombucha kegs there are, it is a very dull environment and does not attract the sort of ambition that rockstars have.