Did you read this on Wikipedia? Because "corporate rock" was a common term in the 70's.
No. My father in law was in the record business in that era, so I got a lot of inside background on it. You may mean something different by "corporate", but Boston was a group of talented musicians formed from a band called Mother's Milk. Stoltz was the genius behind it, started it while at MIT. Most of that debut album was recorded in the home studio Stoltz built in his basement. Very non-corporate.
Foreigner's origin is likewise not very corporate. If you mean AOR, which shouldn't be called corporate rock, fine. Nearly every band you've heard of in that era is AOR.
For me, Corporate denotes an artist designed by a marketing team from day one. I suppose the Monkees were the first, and then rebelled against it. Now that's a huge chunk of modern acts. Simon Crowel put One Direction together.