Donations aren't a zero sum game. If she's soliciting her social network, odds are most of these donations aren't being diverted from other GoFundMes. Most of the money donated would probably be spent in other ways if the campaign didn't exist.

Personally I have seen a pattern where people who are making more money are less reluctant to ask for money versus people who really don’t have money. They often seem to suffer in silence. I have now seen several occasions where people who are making very good money are hitting others up for money for health care or weddings. It leaves a bad taste with me. From a certain income you should take care of yourself.