Really the fraud itself can be ignored if you just focus upon the apparent rate of return. If you have Option A with a high rate of fraud but the highest return

Really the fraud itself can be ignored if you just focus upon the apparent rate of return. If you have Option A with a high rate of fraud but the highest returns and Option B with no fraud but worse returns Option A is the rational choice. Granted the complication is that it is hard to get the actual rate of return reliably.