Because when i pay for painting the house or trash removal, it is my choice to do so. In other words, i get to pay for what i want, need and use and nothing else.
How would you like it if you went to the grocery store and bought what you needed to pay your family all while working on a tight budget so you can also pay rent, electric, trash, water, sewer, gas to get to work, etc and the cashier saw a woman behind you with 3 kids and very little money so he decided to take some of what you bought and give it to her or even better yet, put 90% of what she was going to buy on your bill?
Whether something is good for society or not, it is up to the individual to decide whether it's good for him or not imo.