An airline operates aircraft as its primary busines and employs professional airmen that fly airplanes for a living.
Corporations and individual aircraft owners employ chauffers whose vehicles happen to be airplanes .... which are used mostly to gratify the egos of CEOs and owners.
Yes, I've done both but went the opposite way from your plan, i.e., corporate to airline; best thing that ever happened to me. Would never have dreamed of going back, and I happened to drive for a large, multi-national corporation, with several aircraft, several pilots and a so-called "flight department". We were still just glorified chauffers.
Guess I have a bad attitude but I did not become a professional pilot because I wanted to drive somebody's limousine or carry his baggage and golf clubs, or be at his beck-and-call 24/7. Apart from that, it's hard to stay proficient when you only fly 200 - 400 hours in a year.
To each his own. I wish you luck.