My stance on this might sound controversial but I won't contribute a penny to help someone that was very rich at a point in their lives. We have seen celebrities that were once world beaters getting broke and needing a Go Fund Me. I believe people should be financially responsible.
If I know that the person didn't fall from riches as a result of extravagant lifestyle, I would contribute to help such a person. One bad luck situation can make a person fall from riches.