In what Universe is an appointed Senator deemed "more important" for prosecution than the Chief of Staff of a PMO for the Prime Minister who appointed the Senator?

In what Universe is an appointed Senator accepting a bribe deemed more important than the schemes and coverups which led to the bribe being offered?

This information raises more questions than it answers.   In fact, the only question it answers was the one that was so obvious from the very beginning:   i.e.   How was it possible for a person to be charged with accepting a bribe but not the person who offered it?

This screams coverup.

The Harper Govt was corrupt to the core and swept to the curb for good reason.