No sir, it hasn't. I have and will take continued steps to be nimble enough to not choose such a career path (I'm currently in sales; was previously in management).
If it should happen one day, Good Lord willing, I will simply find something else. Or, like I am doing now, continue training/education so that I get more tools in my toolbox.
No one owes me a living, but I owe my young family my most earnest efforts to provide them with one.
It was never "your job". You should view yourself as an entrepreneur that rents out your labor services to those willing to hire you in THEIR businesses. The job was there as an opportunity extended to you and was never really yours: it was proven when that business owner/manager decided to go with someone [or something] else that gave him a better return for the expense incurred.