Your fee is eating into the $/TP calculation. Unless you work for free. All you're saying is that you were able to get the client a better result than if they had booked the ticket themselves (even after your fee). I didn't claim otherwise.
Mortgage brokers, in fact, don't have access to the full suite of mortgage products (increasing numbers of lenders do not work with them), even though many will not tell you that.
That is debatable - I would agree with your assessment that an agent service fee is eating into the $/TP calculation if it was an itinerary that you could see/research on your own and:
1. book online on your own
2. book via an airline contact centre in a reasonable amount of time without a contact centre booking fee (I say reasonable, because spending 2 hours+ banging your head playing trial and error with an inexperienced airline contact centre rep is hardly a good use of time)
If you can't achieve the itinerary at hand via either of those methods, then how else are you going to book it?
If you have to pay a fee to get it booked, then that forms part of your total cost of the itinerary and therefore $/SC accordingly. In the examples I gave, I was able to lower the $/TP / $/SC ratio which is ultimately the whole point - obtaining a better result at similar/lower total cost, fee or no fee.
The above doesn't even take into consideration what else can be done by an agent - perhaps you might get DSC on the itinerary via an agent that you wouldn't have gotten if you booked via the two above mentioned methods, which further changes the $/SC dynamics.
If you purchase a product online and it's a hard to obtain product that is only available from interstate, you can choose to click and collect for free or pay the shipping charges. Is it feasible to do click and collect in such an instance? Most likely not, unless you were heading there anyway, so you would probably just pay the shipping charges. This is a similar scenario to the above.
Ultimately you have a choice about how you go about life - whether you choose to make it harder for yourself or not.
A DSC combined with a very good sale is what I’m hoping for.
That is already possible - via multiple methods, so why do the two need to happen at the same time?