I think something is wrong of your thinking. Firstly thanks for your research about upvoting. You know Dtube is the first Dapp who is give upvote more those people who are not giving delegations. And your research only the delegations persons! I think you should research it again with the undelegated people who got the more upvoted from Dtube. And proudly I am of the One persome of them. Think Again
I haven't done in depth research into all the users upvoted by DTube. I took a quick snapshot. I looked at the top few. After about the top 50, the number of upvotes falls quite a bit. To build a community involves drawing as many people as possible. A high delegation of 2M from Steemit Inc should make that possible. I would hope that DTube could support as many as a thousand accounts a week. One upvote is currently worth $100, they have 10 full upvotes a day ($1000) that can help a lot of people.