Something I don’t see anyone else talking about: power. They don’t just come in and offer you a fat campaign contribution check on behalf of those they represent while strongly encouraging you to vote a certain way on that one bill that would really move the needle for them. They’re also offering executive / board positions in the companies they represent and related entities. Do your own research on EO 13770 and how that whole deal works, but it’s a lot more networking / relationship building than just a free lunch.