A use for Luxury Resources that adds depth of economic gameplay

One thing I noticed is that Luxury Resources are only used for system development, so I had an idea for how else they could be used that would involve Trade Companies.

The first step would be to have each Major and Minor faction have a preference for a certain type of Luxury resource. For instance, the Sophons would really love Bluecap Mold, and the Cravers would value Redsang. Because of this, each system would have a certain demand for different luxury goods based on what, and how many of each, species are living there. 

The second step would be to have trade companies focus on selling individual Luxury Resources. Ideally, what Luxury Resource they focus on would be a choice that the player makes when the company is created, taking into account the demand of the demographics in the systems that you control. Then, when a Trade Company gets an HQ or branch in a system, it would generate Dust in that system for the player based on how much demand for their Luxury resource there is. This would make it important to be careful about what systems you build your Trade Companies in, so that they generate the most profit. I think this system would add more interesting choices to the Trade Companies, as of now it's mostly about getting the longest route possible, and building in your largest systems. You would have to be more strategic about what systems you build in, especially if you have a more diverse empire. 

Now, that's the basic part of the idea, but I had two more parts that could be added on: 

The first is that you could negotiate with empires so that you could build your Trade Companies in their systems, and they in yours. This would open up much more diverse markets for your Trade Companies to generate profit for you in.

The second would be to have each Trade Company sell stocks on the Marketplace. Each stock piece of a company that an empire holds would provide a proportion of that company's profits to its holder every turn. These pieces of stock could then be bought and sold on the Marketplace. The players could make decisions about what stocks to buy and sell based on what's happening with each company, and the galaxy. If the company just opened a branch in a system that has a large population who enjoys their product, maybe it's time to buy that stock, because profits are going up. If a company has a branch in a system that's about to be conquered by Cravers, maybe it's time to sell that stock. 

Basically, as a player that perfers more pacifist gameplay, I want to see the economic side of the game gain a little depth and complexity, and I think what I've written above would make the game much more interesting for players like me.