I like your explain it to a 5 year old version. There is an additional aspect that I have also come across in trying to answer for myself the question of "where does the money come from?" I wish it were talked about more.
In addition to the rewards pool and the value of crypto, which many people have a hard time understanding, I have concluded that Steem is an incredible platform for entrepreneurs of all sizes to build a business on. Many people have built significant value on top of YouTube and Facebook. Those platforms have incredible control over the destiny of any creator. Steem is much more viable as a place to grow a fantastic business, and that degree of control and "deplatforming" is very hard on the blockchain. Steem has solved some of the biggest usability problems with crypto, generally, such that a creator needs to know nothing about how it really works in order to derive tremendous value from the system. That simplicity is backed by a lightning fast transaction system with zero transaction fees. No blockchain is processing the daily transaction volume which Steem handles, in fact all of the others combined don't reach the scale of Steem, and it will scale much higher in the coming days as transaction demand increases. This is the business platform of the future and you would be stupid to not realize that.
That would probably resonate with the Bloomberg types, IMO. And Warren Buffet, for that matter.