Hi @jacor
Unfortunately I don't have an answer to your question on how to grow the middle class, but I do agree 100% with your point. Currently I am a very small fish trying to grow into this elusive middle class. I do however suffer to find the time to read many posts and do research to post articles of good content, I have not posted a researched article yet, only a few small posts . (I am only on steemit for just over a week).
In the meantime I just enjoy keeping busy on steemit.