I don't know what you could do at the federal level. You know that we have the Canadian Victims Bill of Rights, but every province and territory has their own victims bill of rights, and they also fund their own services, which are very different from province to province, so they decide who's eligible for which programs.
Going back decades, I know that the federal government used to have a cost-sharing agreement with the provinces for compensation, to the effect that “We will fund this if you do these things”. That might be a solution, but at the end of the day, provinces vary, and some will recognize victims of impaired driving and others will not.
Some recognize them as victims of tragic circumstances. Coming from a community-based victim organization in Ontario, I know that how victims are defined is relevant to your funding. If these victims walk through your door, you might get more funding; if those victims walk through your door, you might get less funding. Those are really important things, but they're all provincial and so, in the federal government, I think the leverage is obviously funding.