I would guess, maybe, but if the companies hiring Lispers try to low-ball their pay and work experience too much, the Lispers will just move on to programming a different language somewhere else.

Yes, might take a little time to get your Github up to speed with samples in a different language and employers intelligent enough to see past "X years in Y language" requirements, but I think it will be an easier shift than numerical algorithms and physics to programming, I think.