I think this article just reeks of jealousy. What is wrong with paying people doing top research a top salary? Their skills are extremely rare. And I bet executives get way more anyway.
The difference in compensation here is nowhere near as bad as what happens in Hollywood.
Hollywood actors salaries (or those of sports stars, or CEOs, or authors of best sellers or pop stars) are a known thing so you don't write a 'news' story about the magnitude they have obtained. AI researchers making large sums is not widely known so is 'news' and of interest to readers.
[1] https://www.investopedia.com/terms/n/normativeeconomics.asp