When I see people post stupid shit I dont know how to respond someone said this

"Bill Gates has donated $40million to charity and is working on creating clean water from sewage water for third world countries, in 10 years will be estimated worth $6 billion. Jeff Bezos last year donated $98.5billion to 32 different organizations in 23 states that help homeless families. So they are definitely helping the improve the world. It is not like they have all the money tossed in a vault like scrooge mcduck."

This is obviously really wrong but what do I say to this person to convince them they are wrong?