Why is it so wrong to dislike dealing with sick patients?

Was having a conversation with a fellow plastics applicant the other day about what kind of practice we want to have down the road. He said that he likes "helping people in need" and wants to do the burn cases and other long surgeries that involve tons of inpatient care. I said that I'd quit medicine before doing that and mostly just want to do short, outpatient procedures. Not necessarily only cosmetics, but nothing that requires more than at most a single day of admission or that has a... Why is it so wrong to dislike dealing with sick patients?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums