It is it just depends on whether or not someone is prosecuted...

It is it just depends on whether or not someone is prosecuted for it. As I've said many times as an employee of one of the Big 4 I have trading restrictions put in place as a general employee about 4 weeks before annual results. Board of directors/EGMs have regular blackout periods around various announcements and I can't even day trade the stock. I have to hold any shares for a minimum of 12 months as do any direct family members.

I understand a lot of this is internal policy but it is to protect the company and employees from the temptation of insider trading.

Just because others have gotten away with it doesn't mean what they are doing is allowed.