A young citizen not being arrested for consuming weed seems good to me. When you multiply that event over the entire population, you have a huge regressive cost

A young citizen not being arrested for consuming weed seems good to me. When you multiply that event over the entire population, you have a huge regressive cost forced on these people. Imagine if they didn't pay that cost and instead lived their otherwise upstanding lives :) that is how you benefit society bottom-up.