in a competitive market (which US groceries mostly are) if the store has to "eat the cost" of bruised fruit, then the price will necessarily have to be higher on the fruit they sell.
Think of it this way, you have fruit at home to be shared by all the members of your family, it was fine when you bought it, but now some of it is bruised. So now you own a mix of fruit: what do you do, throw away the bruised fruit, or trim it, or give a loved one the good looking one and eat the bruised one yourself? Those costs (tossing or trimming or eating slightly lower quality) have to be borne by somebody, in this case the whole family or a member of the family.
You buy a car and you buy insurance for it; that's because a car is expensive and you don't want to bear the burden of a bruised car yourself, you want to share that burden with all the other people who buy insurance; and yet, the insurance company is making money, so apparently you are paying a little extra for this decrease in the variance of quality.
Same with your theory of purchasing fruit: you are not saying (in your original comment) what you think you are saying, that bruised fruit is too expensive; what you are actually saying is that you prefer to overpay for expensive fruit all the time and not deal with imperfections. Because otherwise, if the supermarket could sell all their fruit and not just perfect fruit, and was competing against other supermarkets, then the fruit would be overall actually cheaper across the board; you say "you don't get any discount", but with time you actually would.
I explain all this because it allows you to live your life feeling less miffed.