Earlier quoted context omitted.
Food safety laws are a good example. By acting as a floor on manufacturer and restaurant hygiene and ingredient quality, they help the poor a fair bit more than the rich.
The rich also need to well... eat. It benefits them as much as anybody. For example milk started to be regulated more only after someone in Al Capone's family got poisoned and he bribed the right people to make it a thing. You're kidding yourself if you think any of that was to benefit the poor in the first place lmao, just happens to be a side effect.
A lot of our food safety regulations are a result of public outrage over horrendous conditions in factories that produced low cost foodstuffs primarily eaten by the poor in the early 20th century.
Though you could easily argue that the rich still benefit from these laws because they help insure a healthy labor pool.