If for instance they allow reselling the ticket at the same price, processing fees could be exempted from that calculation. So charging the nominal price, but with enormous fees that go to the seller's pocket in a roundabout way will work.
If processing fees are caped, the seller can request payment through a middle item that is nominally valued the same as the ticket but can actually be paid for more.
Or the reseller will accept generous tips in exchange for the ticket at the nominal price. etc. etc.
As long as there's someone willing to pay, money will find the way to the reseller.