I disagree that I don't feel immoral when trying to optimize my financial situation when selling cars and buying vehicles. First, a silly hypothetical that at

I disagree that I don't feel immoral when trying to optimize my financial situation when selling cars and buying vehicles. First, a silly hypothetical that at least shows that when selling a car, I care about something other than price. Option 1: sell my car to a single parent trying to support a family for $5k. This parent's old vehicle was destroyed in a wreck (not their fault) and they need a way to get to work. Option 2: sell my car to an eclectic billionaire whose hobby is running over little cars in his monster truck. This billionaire is offering $5k + $.01 Almost certainly I will take option 1 despite the lower payout, and I suspect almost all of us would. When the difference between payouts is large enough - and that value will vary depending on the person - we will take the higher payout. When buying food, especially meat, I absolutely do feel immoral sometimes. E.g. if I purchase low cost beef, with high probability I am supporting an agricultural organization which contributes to negative externalities. For example, many animal feeding operations create waste which harms the environment (and by extension many individuals), but this harm may not be fully reflected in the price. It's not at all obvious to me what this means for buying and selling labor. For example, perhaps I'm an employer and I have a job opening for a full time position which pays well below a living wage, and further assume that somebody voluntarily fills that position. On the one hand, I feel bad that I'm paying my employee well below a living wage. I wonder about their happiness and health and that of their family, and this keeps me up at night. On the other hand, I believe that the employee would not have voluntarily taken this job unless they believed that the exchange of time for money was strictly beneficial to them. So every night I fall asleep content in the knowledge that I have improved someone's life...