Thankyou for reading, I know that I am dreamer, but in order to try answer your main question, I wrot it above, We must design some motivation method in such a way when people receive some satoshis they will have to spend it (without sale it) and they can not will keep saved anymore.
It is only my humble opinion.
Where would they get the satoshis from though? Bitcoin is not a sort of business that a CEO or someone in authority can just decide that they would give out satoshis to the people for them to try it out.
One of the only ways to get people to use bitcoin for day-to-day payments, if it's better(or at least if you manage to convince them) than fiat money in a lot of categories.
I know nobody could not controller it, but my proposal is a bounty campaign across to motivation method.
When I reefer to "rich bitcoin owners" I am referring people to have over hundreds of bitcoins, and they could spend(Invest) a few satoshis without too affected your balance.
I think that rich bitcoin owners only have two options, spend bitcoins encouraging the market and growing bitcoin economic or save your bitcoins eternally while the banks through scam campaigns bring the price of bitcoin to 0.
Please, recommend this post.