If crimes are committed, they are committed by people; they are not committed by some free-floating entity. These companies and other entities don't operate on automatic pilot. There are individuals that make decisions - and some make the right decisions, and some make the wrong decisions.
I've never been impressed with bureaucratic tradition. I don't like it when the parties come to me and say, 'This is the way that it's always done, judge.' I never found anything in the oath I took or the statutes I was asked to look at that said, 'Judge, stop thinking, because this is the way it was done before.'
An application of judicial power that does not rest on facts is worse than mindless, it is inherently dangerous. If its deployment does not rest on facts - cold, hard, solid facts, established either by admissions or by trials - it serves no lawful or moral purpose and is simply an engine of oppression.
In my experience, most federal prosecutors, at every level, are seeking to make a name for themselves, and the best way to do that is by prosecuting some high-level person. While companies that are indicted almost always settle, individual defendants whose careers are at stake will often go to trial.
Judges are the people who have to protect the rights of individuals, have to protect the rights of minorities, have to protect the rights in the Constitution, have to protect the requirement that the executive and the legislature not simply exercise raw power but adhere to standards of reasonableness and constitutionality.