FWIW, I was surplus to the requirements of my employer over 10 years ago. I was running the IT system in a large primary school. I enjoyed the work, felt I was making a meaningful contribution to the future of young people and was bitterly hurt when I had to leave.
Fast forward to now and I run a property company providing homes for young people starting out in life and for people needing great accommodation that isn't a faceless hotel when they are working away from home. Add to that the staff I provide jobs for and the contractors I provide work for. Sure, the pressures can be heavy and the decisions huge but I work when I choose, with who I choose and am content knowing I make a small difference in the world.
Never have I had the level of satisfaction I do today whilst working in any job...and that only happened because my employer didn't need me anymore. It didn't seem it at the time but it was the push I needed.