I can't believe you'd compare especially Takaki to Orga. Altland compared to Mika might make some sense, save for one thing. But Orga as we know him has always been like he is now, from the beginning. He subscribed to the old wisdom of the importance of making decisions (even the wrong decision is better than no decision at all, which is why he looks like a gambler so often), plus he always knew what he wanted in spirit, even if not always concretely. Of course he was always supported in the unholy manner by Mika, giving the impression if Orga couldn't push forward anymore, Mika would put a bullet in Orga's head next. Takaki is nothing like Orga at the moment, who knows if he ever will be, and Altland is lacking the forward pushing role (if you can call it that) Mika has in his own weird manner, even if Altland is a straightforward fighter otherwise.
I don't think Orga will ever become an honest, clean leader of anything, which is why it's fine he joined the more or less criminal syndicate. Takaki, however, might make a good boss of an organization working properly in the open, assuming he learns from this huge mistake.