PIKE: I said that's one place I might go. I might go into business on Regulus or on the Orion colony.
BOYCE: You, an Orion trader, dealing in green animal women, slaves?
In the next line, Pike completely ignores Boyce's generalization of Orion colony business practices. He doesn't dignify that with a direct response.
PIKE: The point is this isn't the only life available. There's a whole galaxy of things to choose from.
There must be other businesses there. People need to eat, ship non-slave commodities, like raw materials, modular housing, agricultural supplies, foodstuffs.
Or perhaps Pike just picked "Orion colony" out of his hat, but Boyce reminds him that slaves are the primary business there, which he couldn't see Pike trading in, which Pike concurs with. It's Pike's way of saying, "Okay, bad example, but you know what I mean."