Do all shoppers incur the same travel time and vehicle wear & tear? Do all shoppers have the same success or difficulty with fitting these shops into larger/more profitable work days?
Apparently, you would not enjoy being paid $5 by Market Force for a burger and a little write-up. And a side and a beverage. But someone else might not mind that. That person does not have to feel the same way that you do about the little burger shop. They can define their experience in any way that they want to.
Let the people who do not mind these shops do them. Instead of complaining about those people, why not find yourself some shops that pay substantially more? There are some well-paid shops. Some shoppers go to resorts, stay in fine places, eat expensive food & drink expensive booze, and get pampered! If you are an old teen or a young adult, and/or can speak Mandarin or Spanish, you can get hundreds of dollars for applying for a credit card! There are other opportunities for large payouts. You can find them. I know you can.
Nature does not hurry, yet everything is accomplished. - Lao-Tzu