One of them commented that he doesnt know how I stay inside and work all day, he really enjoys being outside with the trucks in the morning, then enjoying the afternoon outside with the kids.

He could be taking the local kids out for hikes in nature instead - an activity which also gets him outside, provides a benefit to society, and lets him spend time with his kid and their friends. If he didn't get paid, do you think he would prefer picking up garbage, or going on hikes with his kid? And even if he finds picking up trash meaningful now, do you think he started the job for the money, benefits, and schedule, and then learned to appreciate the good he was doing for the community after years of doing the work?

Great, and how many of those you think exist?

And how many would we need to run the global water filtration systems?

Tbh I'd kind of trust them more. Even if they got off thinking of my feet later (which, who cares, have at it), they are going to put a lot more effort and get a lot more knowledge than someone just doing it for the high billing rate, dont you think? And probably care more about the quality of my arch than the guy writing a prescription for orthotics because the manufacturer just bought him a nice dinner.

Just because they are pervs doesnt mean they'd be bad at it, I'd say they'd be even better at it than most. Wouldn't you think?

On the contrary, I don't trust any medical profession that is in it for the money.