The justification in the mind of the combatant is simple. Money. Maybe in some sense of adventure or curiosity they join, but the end justification is a monetary one.
After time some begin to enjoy it & simple pleasures are a thing of the past.
Their youth has value, their sweat, blood, hands, eyes legs....their whole unit of flesh possesses value.
The value is meticulously calculated against the task they are performing.
Mallera-9 is a closed cycle, a macro cell of Anarcho Capitalism.
In the "real" world such things are also calculated in terms of value to a given society, often cold but aiming for the greater good.....greater good of the ideology.
Social values or economic structure are the dictating ideology/
Ideology of Mallera-9 is dictated by the market outside of the closed cycle.
But as explored previously, the closed cycle ceasing to output will impact the market outside.
A shortage of Neon Dark will make the price rise.
When the price is right, it must be torn viciously, with speed from the creatures.
Sent straight to market -
If you are a company red or black, you attack the other.
You strafe their Units, you eliminate them, you send them to the Abyss.
You use what ever it takes to ensure their product doesn't leave the creature or make it off the island.
Every action, motive, structure is geared towards currency.
Outside of the closed cycle the currency is Credits - the universal monetary standard.
Inside the closed cycle, the currency is heels on the ground.