A generals power/effectiveness is measured purely in the speed and accuracy by which his/her orders are obeyed. D'Hara's attitude in this regard is infamously nonchalant. In fact, we'eve often seen our Prime Ministers take over-all military command.
Could the General seat be more valuable? Yes. Is it? No.
A horrible place to be a general of it seems. I've actually never experienced a realm where a ruler takes over completely but I can see how stressful it would be to deal with that.