You've clearly never purchased enterprise software at scale before. Oracle doesn't do anything that everyone else isn't already doing.

Dinners, drinks, bottles of scotch, tickets to baseball and football games, plane tickets to attend training sessions in conference rooms attached to nice beachside hotels, business lunches at strip clubs, Superbowl tickets, cruise tickets, wristwatches...

Not to mention mugs, tshirts, water bottles and stickers.

Everything is on the menu.