Hey i dot think its overpowerd to. yea you can make money but you have also a risk. you can never say what you up against in a 2 to 3 mill mission for example, it could be a bunch of Gunboats or a Flottila of Cruisers. so its not certain if you win or not. also i had realy fun blowing up some NPCs with my Battleship Yesterday, it gives the Cap`s a whole new reason to exist. and the players a reason to coorpeate in the Higher Paid Missions. also if you got that much money Congratulations, why are you complaining about.
Edit:
also as a Trader Player and former Ore Miner i can say ore mining had become boring you cant variate the routes anymore you have always the same destination as a trader i can chose where to fly and if i take the highest price or the nicer Route