They were, but there's the question of whether it's a random peasant or a member of the royal disobeying a direct order. You forget, to Trump it's personal.
The general can still fight on the correct side when it comes to civil war. He'd be a valuable asset. But now he can no longer be coerced into giving orders to murder innocent people and it's unlikely his family is deported or murdered as retaliation for him sabotaging or refusing an order.
If enough experienced people resign, the military will be left incompetent.