Patents are literally for rent-seeking. They are explicitly not to maximize the number of people who can benefit from a product in the short term, but precisel

Patents are literally for rent-seeking. They are explicitly not to maximize the number of people who can benefit from a product in the short term, but precisely to limit it so the inventor can make more money. The idea being that in the long run the inventions it incentivizes outweigh the people who are limited from benefiting in the short term. Judges aren't in the position to weigh societal benefits in each individual patent case. Your framing implies that cost-benefit tradeoff. But that's not how it works. The only question is whether a product infringes or not.