Insofar as people live according to its suggestions, Utilitarianism strangely incentivizes suffering. In a society where utilitarianism operates as the governing philosophy, the accommodation you receive from others will be a function of your propensity to suffer. If a society is maximizing its net utility, then it will effectively care more about solving the problems of those who suffer the most. Does this not select for people who suffer more? Does it not make extreme suffering a viable pathway to survival? Especially if technological change makes it impossible to survive through economic competition, the propensity to suffer could become increasingly adaptive for some groups.
I am not referring to merely strategic exaggerations of suffering (although there will be plenty of that, too, of course). More deeply, individuals who genuinely suffer more from one unit of negative stimuli, would fare better than those who genuinely suffer less from that unit, at least within one of multiple equilibria, in one pocket of society. Everyone can exaggerate, but the truly sensitive would exaggerate more convincingly. Moderate sufferers wither away from redistributive neglect while lacking the steeliness necessary for productivity, dying young and having no kids, while only the super-sufferers have what it takes to win a basic income and other survival-support, living longer and having more kids. Victim culture is a child of modern rationalism, a perverse but inevitable life-path within an economic system that finds its chief ethical defenses in utilitarian or consequentialist frameworks.