Ask your DH how he'd feel if he'd created a sturdy, beautifully crafted, legal bookcase, had his clients lavish him with praise for it, take it and then refuse to pay him for the work. Either that, or throw him a few pennies and tell him to get the %$# off their property. Or another scenario: that a client demands money from him up front for the chance to compete against other craftspeople for the mere *opportunity* to have his work commissioned. This would probably be an accurate metaphor for most of the common working conditions within the arts community. This is due to the fact that even with advocacy in place, we still have an uphill battle to convince people our skills are worth paying for, and handsomely, too.
I'm sorry if I seem prickly and defensive, but your husband's analogy doesn't wash with me, because the general public can see the value and use in most concrete crafts such as those at which he excels, and so rewards him commensurate to what he produces. It's getting them to honour this with the non-concrete crafts, such as the fine and performing arts at which people like myself excel, that needs to be addressed.