It isn't "just investing". Especially with regards to angel investing, the entrepreneurs are able to use their knowledge and expertise to allow many other start

It isn't "just investing". Especially with regards to angel investing, the entrepreneurs are able to use their knowledge and expertise to allow many other startups to exist and flourish. In my personal experience, I've worked with a pair of founders that have become amazingly successful at creating viral growth in companies. So by investing & advising, they've been able to multiply their impact on the world.