Where has Socrates's soul gone?

When Plotinus died, his protege, Amelius, traveled the long road to Delphi to discover what had become of him. Apollo Musegetes replied that he was with the heavenly consort, where the great brothers of the golden race, Minos, Rhadamanthus, and Æacus, sit in counsel, and where "stately Pythagoras" and "Plato mighty in holy virtue" dwell.

It is no surprise to see Plotinus canonized alongside Pythagoras and Plato. But the omission of Socrates is a little surprising, is not it?

I see three possibilities, here.

1. Apollo tailored his examples to those who Plotinus personally valued. Plato is mentioned in the Enneads by far more than any other philosopher (2223 times!) so his inclusion is expected, but Pythagoras is hardly mentioned at all (3 times), far less than Socrates (50 times) and less even than Aristotle (8 times). Consequently, I don't think this is likely.

2. The literary Socrates is an idealization of the actual Socrates—those virtues he seems to possess are really those of Plato. I'm not sure how likely this might be: on the one hand, Xenophon's Socrates seems no less lofty than Plato's, turning even drunken jokes into an excuse to lecture on virtue; but, on the other hand, Socrates's own household was a disaster.

3. Socrates is up to as much mischief in death as he ever was in life.