I mean, for a mouse, Pinky is a genius. He's capable of abstract thought, speech, and planning

While The Brain’s plans always fail, in two episodes of Pinky and The Brain, Pinky comes very close to actually conquering the planet. In “Pinky’s Plan,” he invites all the world leaders to a party and then talks them into handing over control of their countries to The Brain. In “Pinky’s Turn,” Pinky creates an Oyster Petting Zoo that eventually becomes so successful that it results in President Bill Clinton appointing Pinky to a cabinet position.

In both of these episodes, Pinky’s plan goes surprisingly well, putting him within reaching distance of global domination. However, when he hands the reins over to The Brain, Brain fumbles and everything falls apart.

Brain has himself trapped in the rat race. He's so focused on making a profit he'll never see the truth of the world. Pinky has the ability to escape Samsara.

Not really. I can't think of the technological term but there is a stylistic device that mirrors them. I can only think of a German example:

Und die einen stehn im Dunkeln und die andern stehn im Licht.
Und man sieht nur die im Lichte, die im dunkeln sieht man nicht.
And some stand in the dark and others in the light. And you only see the ones in the light, the ones in the dark aren't seen.

When you go literal, the pinky and braim song says "one" and "the other", not the former and the latter. It doesn't specify which one it is.