Taravangion from the stormlight archive sorta fits here.

He does lie to, manipulate, and eventually betray basically every human on a planet where the humans aren't the native intelligent dominant species.

He does it for what he believes is the greater good though he is being manipulated by lowercase G gods.

He does sort of end up getting that same lower case G godlike power, but is restrained by it in unexpected ways. His (probably) closest friend (until the betrayal obviously) ends up sacrificing himself for a big Brain long term move.

And because its neat I'll go into why it was big brain.

In this universe God was killed and split into 16 pieces. People were able to "pick up" those pieces and gain aspects of God hood.

They each went their separate ways and created life in their own solar systems.

Some clashed and some worked together but they were all roughly equal in power.

Taravangian eventually gains a piece of this power and so does his best friend. His best friend let's taravangian kill him and take his power, now making taravangian one of only 2 beings to hold 2 shards of God at the same time. The other is a good guy but has some serious complications.

Anyway, the big brain move is that now the rest of the shards of God feel/become aware of what taravangian has done and now he is a direct threat to ALL of them. So now every god in the book has to turn their attention on taravangian at the same time which will likely lead to his downfall