We have a system where a professor can hire a research assistant among undergrads and pay them $750 for their work during the semester. The professor can also hire additional students to work for free. When a prof needs a group of people for their lab, s/he often just randomly selects which of the students in the group will get the money.
This year, the student who won ceded their right to get paid to another student who has great financial need.
Of course, it’s a shame that we created a system where young people have to commit these feats of selflessness.