All kinds of gifts and perks fly "under the radar" for people in positions of influence and expenses are charged off to "business meetings". On small scales, when I was selling and servicing expensive fabrics for paper machines, my employers often required me to set up get-away weekends at ski resorts at which all the food, accomodations, booze, lift tickets, and gifts (new parka and goggles, anyone?) were picked up by my expense account. I'd be asked (required) to set up out-of state junkets for golf, often at pretty pricey country-clubs. Generally, those junkets were stag and involved some chauffeured bar-hopping or private parties, though the ski weekends were usually all-family affairs and my employers expected me to get my wife to come along and help entertain the spouses and kids.
Higher brass like paper mill superintendents, production managers, mill managers, purchasing managers, etc, got nicer trips - maybe to Steamboat Springs for skiing, or to the keys for deep-sea fishing, or Alaska for salmon or big-game. The recipients don't claim all this on their taxes, and the people paying for the "entertainment" write it all off as "business expenses". Most ordinary folks have no idea how much of this stuff goes on nor how their tax burden is increased by having to make up for all the freebies sloshing around behind the scenes.
When Congressional members, their families, aides and staff, are invited to "informational" meetings in exotic locales, please keep in mind that money is "grease".