What can realistically be done about short sentances / probation for serious sexual assault?

It goes without saying that there has been a number of reported cases of young white college men being given incredibly short sentances / probation for serious sexual assaults.

This is the latest:

David Becker, 18, was charged with two counts of rape and one count of “indecent assault and battery” in connection with an incident at a house party on April 2. This Monday, Palmer District Court Judge Thomas Estes gave Becker just 2 years probation.

“He can now look forward to a productive life without being burdened with the stigma of having to register as a sex offender,” said his attorney, Thomas Rooke. “The goal of this sentence was not to impede this individual from graduating high school and to go onto the next step of his life, which is a college experience.... We all made mistakes when we were 17, 18, 19 years old, and we shouldn’t be branded for life with a felony offense and branded a sex offender... Putting this kid in jail for two years would have destroyed this kid’s life.”

Source: http://deadstate.org/judge-gives-high-school-athlete-convicted-of-sexual-assault-2-years-probation-so-he-wont-miss-the-college-experience/

I'm simplifying for the sake of brevity but it seems that a lot of the judges in these cases are older white dudes who over-empathise with the perpetrator and disregard or minimise the impact of the crime. These assaults are often put in terms of "promising young man gets a bit drunk and makes a silly mistake, let's not ruin his future".

I don't know about you but I've got drunk heaps - really drunk - and never sexually assaulted anyone. If, like David Becker, you wait until women are asleep to attack them, well that's more than an accident or mistake. That's a truly terrible and harmful action. David Becker is a sex offender whose life should be impacted by the crime they committed.

I feel that much of this is down to community standards. How can we change this? What can be done? Does anyone else feel the rage I do about these cases?