What sort of task do they need them for? I'm not a photo or video professional. I'm guessing the content these people produce (if that's the main use?) goes to a customer base who mostly use computer displays, t.v.s, etc... If that is the case, 'splitting hairs' to get an extreme level of color fidelity the end user isn't equipped to discern doesn't seem to justify that extreme cost for what sounds like very marginal benefit.
Yes, but color correction mistakes rise exponentially. If the color is slightly off during post-production, but you make several adjustments afterwards, it is off even more in the final product.