Moo, I think you are correct for a lot of corporate operators, but usually not for the top paying ones since most, not all, of them operate with enough crew to be able to give you time off if / when you really need it.
Jobs in corporate aviation with "legacy pay" or more + pension, LOL, health insurance and about 180-200 duty days per year etc are still available out there. The big difference between airline and corporate jobs is usually the amount of flying and nights away from home, if you compare to short haul at least. I know very few airline pilots doing less than 750-800 hrs per your, but I know very few corporate pilots doing more than 350 hrs / year. Stby call out time for most guys I know is similar to that of most airlines so no big difference there. Having said that, most of the time you have no clue of when or where you are going before going on duty. For me that's fine, I just need to know when I am on duty and when I am off duty.