They might cap the amount of attacks you can sent (say one raidlist raid an hour for example).
As for the master builder, I’m talking “programming” entire villages with decent input of gold.
Making this game more about strategy and diplomacy, rather…
Imho gold should not be used to get resource benefits but rather to manage an account with less time.
The gold club trade routes are a fine example of this. I imagine they could make all kinds of master builder upgrades, and auto attack options, to be…