I don't think Sage's folks are all that rich. Her dad is at the prep party looking for new clients or something, but the guys there are shunning him. When he buts into a conversation they blow him off:
Guest 1: "Come winter, I'm considering taking the family there for a ski trip."
Guest 2: "Me and the missus rented a cottage a bit further up north. Trust me, it's worth every dollar."
Guest 1: "Maybe we could have a company retreat there? Tax deductions, wink wink. Hehe."
(Sage's dad comes along)
Sage's Dad: "Haha! What's this I'm hearing!?"
Guest 1: "Haha! You didn't hear anything from me."
Sage's Dad: "Grr! I'm going to report you. Haha!"
Sage's Dad: "Just kidding! I'm invited, right?"
Guest 2: "I do like the sound of a company retreat, but perhaps for another year?"
Guest 1: "Yeah, you're right. This year is too short notice."
Sage's Dad: "Hah, what a bummer! I'll be back for you two later!"
Sage's Dad: "Right now... Refreshments!"
(Sage's dad goes off to mingle elsewhere)
Guest 2: "What do you think about November?"
Guest 1: "Sounds great! I'll run it past Gina on Monday."
So basically they lie about the retreat not being planned for this year to blow him off.
If he was seriously wealthy they'd be up his ass.
Did Jill's tits shrink?