My theory is that they actually had an incentive not to be too competent. As long as their squabbling just gets a bunch of minions killed, it's fine. But suppose that one Goa'uld decided to fortify stargates, use a bunch of secret weapons simultaneously, and begin conquering in earnest. This guy would be wildly successful, for a while -- until the rest of the Goa'uld power structure decides to take him down.
It's well established that all Goa'uld have the vast knowledge required to pull miracles out of their hats at will. They can and will punish any defector who doesn't have a huge advantage. Just look at how they allied against Anubis, when he made his bid for supremacy.
The Goa'uld are not pathologically incompetent; they're just wary of being disruptive.
It's well established that all Goa'uld have the vast knowledge required to pull miracles out of their hats at will. They can and will punish any defector who doesn't have a huge advantage. Just look at how they allied against Anubis, when he made his bid for supremacy.
The Goa'uld are not pathologically incompetent; they're just wary of being disruptive.