As always, the Scrooge McDuck gif is priceless (lol puns). I really love all of these ideas--especially the concept of PAID internships in cultural institutions. What an crazy thought.
Out of curiosity: In terms of the $1 million distributed to grassroots organizations, what would the process be like to find the right project? It seems like you're looking for more programming and less operational budget uses here (as you talked about in the $10,000 and 100,000 proposals).
RE: Making it Rain: How Various Sums of Money Could Positively Impact Cultural Nonprofits