YMMV....

For example, policy can vary widely based on division even in the same company. My previous company would go thru waves of penny pinching and liberal policy. Currently they allow business class for long transpacific and atlantic for any employee offically, but in some divisions everyone including VP travels economy as they are cheap. The spend like drunken sailors for the most part now, but that will change shortly, LOL

My current company a huge portion of us travel and everyone including CEO even with almost 5M miles does economy.

My son just joined a fruit company and one week in he flew business and will fly business for probably 10-20 times a year depending on how many issues he needs to address. I'm a bit envious as he hasn't even made his mid 20's.

Then when you come to food/hotels/entertainment that can be just a crazy variable too and I'm not even exposed to the deal / rainmakers. A friend of mine at a previous company talked about how on a business trip to Vegas they rented exotic cars for their clients, and I can only imagine what else later, LOL