Long Term Disability Claims are NOT claims for pain and suffering.
Long Term Disability Claims are not based in negligence.
Nobody from long term disability insurer ran you over with a truck or hit you with a baseball bat resulting in your disability. You had something completely unrelated to your relationship with the long term disability insurer; before your disability arose. It could be serious medical condition; a bad slip and fall; or a stressful work environment. Nonetheless, the long term disability insurer had nothing to do with giving you the disability in the first place.
To be fair the way a long term disability insurer treats you can result in mental anguish, financial distress or harm. These sort of claims along with bad faith claims handling is a separate tort all together. These cases are the exception, but they certainly do happen.
But the foundation of a long term disability claim are the long term disability benefits themselves; which are a creatures of contract, not tort.
Standing alone from any separate tort or bad faith claim; quantifying the value of arrears and futures is a mathematical equation based in contract. It’s not an imaginary number which is made up by the Court.