I think you are rushing to give away the store.
Lets try an equally convoluted view ---A licensed professional who re enters the job force and earns say $15,000 the first year doing say 100 hours of work --has just established an earnings capacity of $150 /hr and it may be reasonable to project an annualized income of $300,000?
Lets do it backwards--suppose you were a licensed professional and your net billing rate after expenses was $150 /hr and you billed say 2100 hrs a year--but in anticipation of a divorce you cut your billable hours to say 100 hours/yr ---think that would fly? (BTW I know an attorney who cut his billable hours to near zero!)
Staying home to care for kids in diapers doesn't cut it as mandatory logic if kids are now 14, 17!
And my spouse's income soared way past mine when spouse re-entered job market at well over 50--sure first couple of years were lean--but soared soon afterwards....