I’m pretty sure capitalism isn’t only interested in overall benefit to everyone in society, nor is it interested only in overall detriment to everyone in society. More simply, there are winners and losers. This is a side effect of a capitalistic system. I’m also pretty sure society isn’t ideal, and that corporate law dictates that corporations act in the best interests of their shareholders and the corporate entity itself. This may or may not include consideration for the overall “net goodness” of side effects to profit seeking.