Sound opinion piece from Andrew Coyne on the subject:
https://nationalpost...-why-stop-there
I would add in this (local) instance another completely non-altruistic reason for Isitt to champion this issue is, as has been mentioned on VV by many others, name recognition particularly when it comes time for a municipal election: as mayor Lisa Helps will obviously garner the lion's share of press and media coverage.
However by semi-routinely popping his head up and coming up an original idea or "plan" or pubic comment - ahem, the poinsettia incident et al - or supporting an issue already raised by others (and remember per the article Andrew Weaver has previously supported this idea of a lowered voting age), and which is guaranteed to get air time, ol' Ben ensures his name stays in the public consciousness - even if the idea is whacked. Smart politics. Too bad fixing the potholes and other unexciting but critical day to day stuff that he should be focused on per his job description, tend to fall by the wayside.
But then unlike suing Big Oil, or denouncing Christian religious beliefs or, for that matter, Capitalism - they don't tend get his name in the paper or the 6 o'clock news do they...?