Sample bias too. A lot of poor people would insider trade if they 1. had brokerage accounts and capital 2. had material non-disclosed information coming across

Sample bias too. A lot of poor people would insider trade if they 1. had brokerage accounts and capital 2. had material non-disclosed information coming across their desk. Turns out only moneyed people are likely to have the combination, and we only see the ones that chose to act on it in the news, even if 99% wouldn't.