> For the same reason why people are against high level government officials anywhere getting pay raises. The public perceives it as a waste of money and believe that public servants should be solely motivated by the work and not the money. People forget that paying people who have significantly disproportionate power well makes them less likely to be tempted by outside influences.
Interestingly, that's part of the reasoning why Singapore pays ministers millions per year. https://en.wikipedia.org/wiki/Cabinet_of_Singapore