Edict's government-employed mantis family, vulnerable to financial ruin or political retaliation from his choices.
Edict identifies his family hive as Deep Mind. Because it is employed by the Burrower government, its members cannot mate with a for-profit hive without a bond, license, trial, and counseling.
Giving Carl the prepaid loot would make the family repay the government and leave it unable to survive. Refusing Vrah could bring revenge from her much wealthier clan, while mating with her would mark Deep Mind as disloyal. Edict chooses death to protect them from all three outcomes.
Deep Mind is the family and honor obligation motivating Edict's sacrifice.