Been with several companies that have the first part in their policy. It makes sense to avoid, or at best minimize an external influencing factor in company activities. Basically they don’t want to mess with lawsuits. That’s what company policy is for, protect the company.

The rest is owner greed. He doesn’t want the gifts to stop, he wants them all without doing anything to get them. Either enforce a ‘no gifts, period’ policy or let people do what they will.