Those salaries are also in line with the average salary.
Which is very very good in US, compared to the rest of the World.
For comparison, in Italy a policeman earns on average 60% of the lowest salary you posted.
it is supposed to be a working class job, with good men doing it, not a "professional highly paid killer's job".
p.s.: 50% of Americans earn less, 30% earn much less, than that.
So yeah, it's good, especially for being one of the worst police force in the western World.
Victims of police shootings in US 2019: 1.004
Victims of police shootings in Europe 2019: 60 (including Switzerland, that's never been EU - zero kills - and UK which is not in EU anymore - 3 kills -). But let's round it to one hundred, still an order of magnitude less, in the face of a comparable population size.
If I was the US government I would expect a better job from them, before paying them more.
p.p.s.
To be even more precise:
Total Line of Duty Deaths 2019: 147
Including 24 9/11 related cancer, 22 automobile crashes and 19 heart attacks.
Only 48 died because of a gunfire, so for every cop who died in a gunfire, they killed 21 people.
It looks scary to me, I don't know what do you think about it.
I consider the police in my country (Italy) to be quite brutal, but we had only 5 officers killed in 2019 and 3 people shot dead by the police.