It seems it goes out of topic a little. So back to the topic. Of course, you are right, that person, who already likes to play as a trader can do so, aswell as someone, who likes to play with fighters, but overall I think it wouldn't have a great impact on the player itself, except he has more variety in interaction and options. It isn't just the fact that the current system benefits isolation within the faction in my opinion, but also the option of legally operating corps pirating counter corps is a weird thing. If I want to support interaction in the disco environment, even supportive in a RP way, I would hire pirates to pirate my counter corp.
I mean pirating never benefits the reputation in the eyes of a citizen.