The article talks about specific cases where they did try.
Libor fraud? Pass. Money laundering for drug cartels? Pass.
Would you believe it just if someone robbed you, was caught and had a pay a fine of half the amount they took?
The government essentially allows criminal fraud by the powerful and then takes their cut of the profits, meanwhile the weak and poor continue to suffer, but luckily we got intellectuals who can explain away how its all too complicated.
Complete and utter bullshit.