A really, really underrated feature of the freight system was that it stocked stores at a rate much higher than players delivering crates, especially on Green and in the Badlands. Even if the income generating part of freight had to be turned down for reevaluation, it would be really really convenient if players could deliver cargo on their own dime in the meanwhile.
Players will sometimes just pay immies to run crates to Green to deal with stocking issues, so as much as it seems like someone players wouldn't bother with if it didn't pay, I do think there is actually grassroots economic value in letting cargo get run and just not give a payout if the player doesn't have a license.