Nepotism means showing favoritism towards family members, e.g., a nephew hired or promoted instead of a more qualified person.
Sorry to nitpick. I just see that word misused a lot online. I doubt that you're implying that a person would be effectively disowned by family members for taking a semester of their Harvard MBA program online instead of on site.
Nepotism also refers to preferential treatment of friends and loosely defined "family" members (e.g. members of your tribal group), and universities like Harvard are certainly involved in laundering that kind of behavior.
Sorry to nitpick. I just see that word misused a lot online. I doubt that you're implying that a person would be effectively disowned by family members for taking a semester of their Harvard MBA program online instead of on site.