I brought up the Prime Directive because most space nerds know it, and either are like "yeah" or they groan about it. But basically, the pursuit of greed has you interact and exploit native and low-tech races. In WH40K, you blow up inferior races, or conquer them. Even in Star Trek, they frequently violated the Prime Directive.
It's not relevant save for describing how some see the acquiring of technology and discoveries. If science is shared simply by interaction, than the mere exploitation of a population will inevitably allow it to catch-up, like why the Native Americans aquired rifles and horses. Neither were native to their world, but through meeting with European merchants, and exchanging goods (and being armed for resistance) they became armed with horses and rifles.
Traveller because of its focus on why Trade is Good will always lead to a setting where you don't really have races in enough isolation to have to solely ascend to space travel by means of relictech. At some point, a race will have a merchant visit it, who can sell them what they need in parts or in whole, the components for their own ascent to jump travel. In a setting where there are no protected in isolation worlds, like in Star Trek, I don't really see a viable setting where Relic-tech is the basis of scarcity itself. Maybe if you are playing a setting where your the first race to jump travel. But if you play in a setting with enough races already at that point, there seems to be logical shortcuts for races seeking to go 'upward'.