I've noticed the same trend. HN (as a collective) doesn't believe in punishing white-collar crimes with incarceration. I guess it hits too close to home.
Realistically, I mainly believe in punishing violent crimes with incarceration. Most white collar criminals could be sufficiently contained with house arrest and restrictions on visits/internet access/etc. Just realistically, you can keep a financier in an apartment they pay for, but probably not a good idea for someone who's murdered and burglared.