This has been true for a very long time. It's not a modern phenomenon. There was probably a "golden age" in the middle of the last century when it was a good idea to be a company man. But before that, and after that once the MBA mentality took over, workers have been treated like disposable units. It only makes sense for a worker to strategize to maximize their own career and income, instead of placing their loyaltie…
It was a conglomerate, starting with theaters then adding TV and other entertainment, plus soft drink bottling and more.
The individual companies were well funded, they had plenty of staff, and there cross-company staff discounts. My dad worked for the TV station WTVJ and we got discounts to go to the movie theaters owned by Wometco.
There was a yearly Christmas party for staff and family, and the Wometco would be flown in by helicopter, dressed as Santa.
After his death it got bought by KKR in a LBO, split up, and sold for parts. Staff was greatly reduced and overworked. The Christmas party was no more.