I can see where the OP is coming from. I've always found it distaste- ful, 'business' men bidding ridiculous sums for a dinner, a round of golf etc. Why not pay the people working for them a bit extra or quietly donate their money rather than indulge in this self aggrandisement.
A lot of the 'celebrities' who get involved in these schemes charge horrendous expenses & fees.
Duchess of York- £100,000 to attend charity gala.
Alex Ferguson- £80,000 charity dinner.
Just 2 that spring to mind. Nice work if you can get it.