With what you just said now I think things will go south if Satoshi wallet decide to sell some portion of his Bitcoin but is this not greed from our own side? We want developers to work for free for us, I think it's greed from our end, the aim of all investors is to make money but in return we want someone to sacrifice everything for us without getting anything by the devs, what a cruel world.
Nakamoto made the ultimate sacrifice but I expect him to enjoy a piece of his work it is a big sadness if he is not alive anymore because his work is now taking the lead in the world and he is not here anymore? That will hurt, but there is no way to know this right now.
There is nothing wrong in taking profits, it doesn't mean a project is bad when the team takes profit, they have worked their asses off for years and the project called XRP is still alive and topping the top 10 best crypto assets since that time, let them enjoy the fruit of their labor.
OP forgot one thing, Satoshi never swore or declared that he would never sell his bitcoins. It's been 16 years and he still hasn't moved any bitcoins, but that doesn't mean he won't wake up in the next 16 years to sell them, if he's still alive. It's just that he hasn't sold yet, not that he never will.
Indeed, many of us are not only greedy but also selfish in that we only want others to sacrifice while we ourselves want to make as much money as possible. But I think only OP and some people want that, not all. Like you, I agree that Satoshi or any developer has the right to enjoy the fruits of his labor. They deserve it for their contributions.
Even, I think Satoshi selling bitcoins is a positive thing because anyone holding a large amount of bitcoins, regardless of who are, is not good for the community at large.