Are there any real modern Robin Hoods

If you're a bit forgiving with the definition of "Robin Hood", large open source projects that are sponsored by big corporations.

The money they get from companies is given to (usually underpaid) contributors and to keep the project going, to the benefit of everyone.

Luigi?

I don't think you'll find one person doing everything. Instead you have to look for the little things. Every time we choose local you're giving to a needy person instead of a billionaire. Every time we choose to reuse an item or donate we help someone and take a bit more back. Collectively we can all be Robin hood

Not exactly stealing from the rich but Bill Gates seems pretty hellbent on donating away his fortune before he dies.