From the article it says the officer has to appear in court for each DUI arrest...which leads to overtime pay. The officer made 319 DUI arrests of which 174 cases were dismissed. The more arrests, the more overtime pay so there's an incentive to arrest people even if they are not drunk. This is how he's making $250K.
The less you have to buy, the more money you have. Or the more stolen goods you sell, the more money you have. Or the more stolen goods you can give to others, the more goodwill you can get with them and possibly favors which can save you money elsewhere.
Are you implying there's a link between having money and being immune to corruption? In the US, just look at the federal government or titans of industry, like Elon Musk.
For every DUI arrest made, state police troopers must appear in court, and in evidence motions filed with the court, attorneys have said this has led to a staggering amount of overtime pay for Trooper Bradley.
State records show in 2024, Bradley nearly tripled his salary, earning nearly $250,000 in one year."