While I want to agree with you, my critical mind finds flaws in this. The idea of a taoist in charge is an oxymoron: "would this tortoise rather be dead and have its bones honored, or would it rather be alive and dragging its tail through the mud".
And the idea of a buddhist doing anything to change the world is also impossible to me, isn't it all about accepting reality as it is?
I am not an expert, but I think 'accepting reality' is not the correct term. It is 'seeing clearly the way things are'. That does not imply passivism, but it will enable more 'skilful action', not clouded by greed, hatred etc..
Looking at long term Buddhist societies I don't really see a difference from the disappointment of long term Christian societies when it comes to expecting the over all outcome to reflect and be overridden by the priorities in the base belief of the original thinker. I think people confuse those who go through the motions to move within a system with the original thinker who is probably incompatible with the system and would be unable to be a leader in it.
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There is now practically a cliche saying in Zen. When hungry eat, when tired sleep. But in that exact same sense there should be, when something needs to be acted on, do it.
It isn't about total passivity, but trying to not to excessive force a position. If you fall in a river, to be passive is to float with it. But the smart move is to swim to the side. Don't try to swim against the flow but with it.