I'm not sure what we're supposed to be upset about here.
Is it that our tax dollars are being "wasted"? 23 individuals making $3-500k (including benefits) is maybe $6M compared to if they were all making $100k. Not a huge deal on the scale of the city budget.
Is it that some of them got that money fraudulently? Sounds like that's at least within the realm of possibility for the one guy who basically took home 3 salaries after overtime, but presumably not all 23. That's an individual problem for which he should be prosecuted if he did anything wrong, not a systemic problem.
Is it the part about the police having trouble hiring so that they have to pay that much overtime? There's a reasonable story there, but that's not the one that was written. Certainly the mayor's salary has nothing to do with that.
Is it just moral outrage at people becoming wealthy in the public sector? Besides the fact that $300k/yr, especially in SF, is not exactly in the top tier of "wealthy" - it's certainly not buying-Senators money - why shouldn't the top public servants be paid well? If we want politics, or policing, or any other public-sector job to be attractive to the best and brightest, the top end should pay like it. You can quibble over whether these particular individuals deserve it, but again, that's not the article that was written.
A non-lazy article that wanted to make a real point beyond "those fuckers make more than me, how dare they" might have answered questions like: