I can't say I fully understand your question. But, let me explain one phenomenon. I believe your answer, somehow, caused by the skin effect basically. The current is tends to flow from the surface of a conductor when the frequency of it increases. Because of that, some part of the crossection of a conductor can't be exploited. That is why we use braided conductors at transmission lines. A better and detailed explanation is here:
Resistance offered is not depending on frequency, but inductive reactance Xl would increased with frequency hence low frequency good for conductions, while the capacitive reactance offered is low with high frequency hence high frequency is good for diaconductions....
The relation is related to the skin effect (penetration factor), in good conductance (high voltage transmission), the lower the frequency the better the efficiency and the less the resistance, and the better the penetration factor, so, low frequency is needed.
it is the opposite in dia-conductance medium, where the penetration factor increases when the frequency increases. so, the higher the frequency the better the penetration factor.