All I know is that when they asked for volunteers, and I didn't raise my hand on that first round of layoffs, then finding myself with no veteran engineers left to brainstorm with, I definitely had "survivor depression". I could not believe I was so stupid as to miss that opportunity. However, true to form, Honeywell gave me another chance to volunteer a year later and I finally found the peace that my coworkers had found the previous year.
It is remarkable how 2-3 creative individuals, with the knowledge and ability to create and execute despite processes designed to thwart same, can make such a difference. And when gone, leave such a void for those that remain.
As far as the company goes, put your hand in a bucket of water. Then remove it. Measure the impression you made. That is how much the company misses a veteran engineer who made decent money. Your coworkers and co-colaborators will miss you very much, but they, like I did, will wise up and bolt for greener and more appreciative pastures.
I left my group to a consortium of young graduates who wander the halls in packs, and cannot make a decision alone if left by themselves in a room full of vipers. This is the perfect place for them.