Risk vs Reward
Higher value targets should come with greater risk. This includes bounties and it includes actual cargo value.
Increase the risk involved for carrying high value cargo. Right now there isn't much risk, if you are interdicted the NPCs apparently suck at interdicting. And even if they don't you can just jump away. I'd have more difficult and/or higher quantities (wings) of NPCs (dynamic based on value and area [high security vs lawless]). This would make it more difficult to make massive credits safely, but it should be more difficult (risk vs reward) and prompt more balanced builds (have some combat ability) or more cooperation (friends!).
Blending Roles
This was slightly touched on above (adding a reason for combat for non-combat roles based on the risk involved).
Add a reason to have miners/cargo haulers (let's call them scavengers) in combat. Right now, you have limpets and you can just kill them, but if you do kill them it doesn't involve any specialized equipment (beyond collector/cargo space). Allow miners (or similar equipment) to break down the debris.
Higher value targets should come with greater risk. This includes bounties and it includes actual cargo value.
Increase the risk involved for carrying high value cargo. Right now there isn't much risk, if you are interdicted the NPCs apparently suck at interdicting. And even if they don't you can just jump away. I'd have more difficult and/or higher quantities (wings) of NPCs (dynamic based on value and area [high security vs lawless]). This would make it more difficult to make massive credits safely, but it should be more difficult (risk vs reward) and prompt more balanced builds (have some combat ability) or more cooperation (friends!).
Blending Roles
This was slightly touched on above (adding a reason for combat for non-combat roles based on the risk involved).
Add a reason to have miners/cargo haulers (let's call them scavengers) in combat. Right now, you have limpets and you can just kill them, but if you do kill them it doesn't involve any specialized equipment (beyond collector/cargo space). Allow miners (or similar equipment) to break down the debris.