I somewhat agree, when she is representing a wider group in public, there is an enhanced level of responsibility.

What she does when she’s not in the public though, as long as it’s not illegal, shouldn’t be anyone else’s business. My understanding of this case implies she was attempting to be subtle about smoking.

Around young children who could be inspired by you? Don’t smoke.

In your own house minding your own business? Smoke like a chimney for all I care.