I think it largely depends on what the public figure does. If your public figure runs a Government department or is a politician of note, or is perhaps a religious figure then I think some interpretation of their words when weighed against their public job is likely wise.

If their job is putting on costumes and pretending to be other people, ie: their job has no real relation to their political or social viewpoint, I think the general public is unwise and ill advised to get involved. We end up playing semantic fuckduggery and moral musical chairs.

Can this painter paint? Can this actor act? Have they been convicted of a crime? If not.... not really my concern. That's the Penguin libertarianism kicking off again :o)