Optics are one thing, but perspective is important. From the Financial Post:

"The federal ethics watchdog says she advised Morneau there was no need to put his assets in a blind trust.

Mary Dawson says that since the former businessman’s shares are held through a private holding company — and not directly controlled [by] Morneau — he didn’t technically need to divest or put them in a blind trust."

So Mr Morneau disclosed his holdings to Ms Dawson, and acted in accordance with her advice. 

As for changing the current law, I'd like to hear arguments on both sides before jumping to conclusions. More than ever we need our politics to be governed by rational discussion.