Now I totally agree with Zoey's comment.
-You have to use the traditional way to make money, its freelancer
For instance, The IMG have a large financing power, with miners and traders. But still when we get into our fighters to fight bandits we do know its to save our living, not to make money. You can do that because its a game, and I think most understand this fact. It is really how it works, don't try to break the game system.
Now, when you free yourself from the profit thinking, you will mostly play for fun, for the RP. Credits are nothing.. just numbers. The more you have the more you understand they are actually not important in the game at all other then limiting an individual's possessions. SO why would you bother asking for more?