I've had several different hospitality positions over the years. One location was a contact center (aka call center) that had employees that interacted with guests in a manner similar to an elite-level frequent guest Concierge. The policies regarding accepting gifts varied by company.
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• Independently Owned and Operated Hotel: No rules. Employees kept everything. No records kept. (With no records, the only way a guest "benefits" from the gift is if the employee remembers it was given.)
• Corporate Owned and Operated Hotel: Employees must politely decline gifts multiple times before accepting. All food items were discarded for liability purposes, regardless of value. (More than once, I saw people "rescue" sealed food gifts from the relatively clean trash cans used in the offices and take them home.) All other gift items were donated to charity. Gift cards were used to purchase something for the entire department. Records on gifts were meticulously kept. Everyone at the hotel with access to the database could see that a guest gave a gift.
• Contact Center: Mail and packages were processed off-site. All gifts were donated to charity. (No clue if that included food items.) The employee was notified so that she or he could contact the guest to say thank you. Gift cards were sent to the Team Manager. (Teams were allowed to decide as a group what to do with these gifts. In the three years I was there, I only heard of teams donating them to charity or purchasing something for the entire team. Teams could decide that individuals could keep gift cards, but any individual gift card was taxed,) Any gift cards emailed directly had to be reported to Team Managers or risk being written up. All gifts were tracked but only certain people had access to that database, meaning the guest really only got "benefits" if the gift was remembered the old-fashioned way.

TL;DR: Policies for accepting gifts vary wildly by company. Even if the recipient accepts the gift, they might not actually get to keep it.