No, there's no altruism - he's proud to be a jerk and will tell you so.You may think what you're doing is generous
"We're IPv4 hoarders who find any way possible to sell IPs in both cheap and bulk, with little to no justification as possible. We follow bare minimum ARIN/RIPE regulations to pass the radar. "
So he know what he's doing is unethical and probably in violation of ARIN, but as long as it "passes the radar" (i.e., he gets away with it and makes 50 cents) he doesn't care.
Eventually, CC will tire of him and find a new orphan to toy with.