Earlier quoted context omitted.
Talking about your job at parties is way down the list of reasons social status matters. It's a fair point that people shouldn't make all their decisions with status in mind, but it is also wrong to belittle it as a consideration.
What are some of the other reasons? Suppose you could make $500k/year either by being a cardiologist or by cleaning out septic tanks. What advantages does the $500k from cardiology get you that the $500k from cleaning septic tanks does not? (Aside from impressing people at parties)
“You know, I should say up front that, in my experience, doctors tend to be assholes. The reason they tend to be assholes is because they get to be. They're doctors.”