I don’t see any reference in the quoted statements to “bashing wives” at all, only references to incarcerating Aboriginal offenders in general.
The fact is that the experience of Aboriginal people in jail can subjectively be very different (and worse) than that of their non-Aboriginal counterparts - resulting for example in a shamefully high rate of deaths of Aboriginal compared to non-Aboriginal people while in custody. These impacts do not, of course, touch merely the incarcerated person, but ripple through their families and communities.
One size does not, and never has, fit all when it comes to deciding an appropriate punishment for crime. Circumstances of an offender need to be considered, including, for example, the likelihood that prison will prove a rehabilitative rather than destructive experience for him or herself, and benefit rather than harm him or her and his or her family and community.