It would be highly unusual to come across such a person. What you are describing is a stereotype, a kind of cliche. That said, I would begin by listening to people who you think might be like the stereotype you imagine. You can use a technique called Appreciative Dialogue
Of course, such individuals exist, and there is nothing wrong with their priorities.
It is important to avoid stereotyping or stigmatizing them for prioritizing personal benefits. While some people may be impact-driven, others may be more focused on benefits; our priorities naturally vary at different times.
It would be unfair to assume that individuals should be treated differently based on stereotypes about their priorities.