Wisdom, beauty, or money?

An angel appears before a man and says "I'll grant you whichever of three blessings you choose. Wisdom, beauty, or ten million dollars".

Immediately, the man chooses wisdom.

There is a flash of lightning, he is transformed, but then he just sits there, staring down at the table.

One of his colleagues whispers "You have great wisdom. Say something!"

The man says

Spoiler:

"I should have taken the money".