When any politician called for the right thing, was it because they really thought it was a good thing? Or was it because their political opposition said e.g. not to worry, so they automatically and necessarily said the opposite?
In other words: suppose you find a politician X who called for good-stuff and they are in the opposition. If counterfactually the party in power had done what you'd want and also called for good-stuff early, would X have stood against it? That obviously affects whether you should take X more seriously on the object level.