[moooo99]

Because pay is not directly correlated to technical finesse. It is primarily dictated by how much money a company can expect to make.

And Advertising (FAANG) is insanely profitable, while doing software in other difficult fields (firmware in automotive or embedded, etc) may be technically challenging, but the margin is is only like 6-10% max

[LPisGood]

Only 2 of the letters in FAANG are primarily advertising companies.

[psvv]

They're all pretty high margin though.

I think flipping the question like this gets at the heart of the true answer.

The question is not why video game pay has lagged, but why tech pay has jumped ahead.