This is nonsensical - profit does not erase cost. Profit is what is left of your income after accounting for costs, which literally means you paid for things (either in ISK, or time, or effort) but have some money left over. What are you trying to say here?
Edit to add: so, I was curious and ran some numbers using a prolific CODE. pilot who has fairly consistent ganking hours and location (18:00-ish to 02:00-ish EVE time in Poinen and Obanen).
Jan 27 18:00 to Jan 28 02:00 (8 hours) for Luna Nightblood per zKillboard:
Losses: 601,862,273.51 (includes FacPo kills and CONCORD kills)
ESTIMATED earnings (dropped loot value divided equally between attackers and an assumed single hauler): 1,047,005,516.64
Profit: 445,143,243.13
Hourly profit: 55,642,905.40
The above doesnât account for any scouting scanner who has to be paid, nor for the true value of a 180-day SKIN that had a 0.01 isk value on zKillboard. There were 3-4 attackers on three of the four killmails; the fourth was solo. There were no other CODE. ganks in Poinen or Obanen during this period, so Luna was in on all ganks during the examined window of time.
So⌠yeah. I donât really find 55m isk/h stalking a trade route for prey to be an excessive profit margin for high-sec by any means. It simply comes at a cost to other players in addition to the ganker. Are there days where the gankers get better profits? Sure, when they get lucky on loot drops on a juicy target. But they can just as often get less, when a target doesnât drop the good stuff. Highlighting the two highest value kills of the night:
125m dropped, 2,423m destroyed (excluding ship hull)
950m dropped, 1,079m destroyed (excluding ship hull)