There are a lot of people who plea for everybody, regardless of personal political beliefs, to go out and vote. Because they add the part “regardless of personal political beliefs” their plea appears magnanimous and unbiased because it doesn’t appear to be pushing their political agenda (They want everybody’s voice to be heard!).
But whether they’re conscious of the fact or not, if everybody who heard or read their plea complied, it would skew the vote in their political favor. Why? Because most people surround themselves primarily with like-minded individuals. So the majority of the people hearing or reading their plea will likely align politically with them.
Thus what appears to be magnanimous and unbiased is really personal agenda pushing.