Money can be all over the place. One of my closest friends was John Travolta's pilot for about a year. Travolta is an accomplished pilot, and smart enough to know that even though he enjoys it, and studies it seriously, he doesn't have the experience a full time career pilot does, and he keeps one with him for the sake and safety of his family. Smart guy.
You can get great jobs... your skiis, golfclubs whatever.. go right next to the CEO's and you play Pebble Beach when they do... sit in the Bahamas for a week... waiting for them to go back. You can get bozo jobs working for jerks... one of my favorite dog jobs was for the COORS distributor in Lubbock.. they wanted their pilot to drive a BEER truck, when he was not flying the plane.. and they were paying no where close to standard wages. Consequently, their brand new airplane sat in the hangar a lot. You get to meet a lot of celebs, and keeping your mouth shut about the things they say and do is a big part of the job... also who they have as "guests" that travel with them from time to time... The biggest problem is... NO job security... the FIRST hiccup in the company... and the first thing they do is fire the pilots.. and start looking to sell the airplane. If things get better.. the will re-hire the pilots if they didn't sell the airplane yet..... but the original guys usually are long gone by then. To hold a corporate job for 3 consecutive years is not common. It's done, and usually by the large company's that have multi plane fleets, but those jobs never see the light of day. They are passed down to buddies, sons, relatives of the CEO, etc... still there are a lot of jobs out there. You may see $15,000 and driving a beer truck on the side... up to... well... you could get over $200k for the guys that are flying BBJ's for MAJOR corporations... but those are most definintely the exception to the rule. Most corp jet captains are in the 60-80K range