What did the Buddha say about compromise or being a purist?

In an election scenario, a Buddhist may face a dilemma when deciding whether to vote for leader X, who aligns with their values in most areas but contradicts them in one specific aspect. Conversely, the opposition leader Y is perceived by the Buddhist as being misaligned with Buddhist teachings across all areas. Given that these are effectively the only two choices for leadership, would it always be wise for the Buddhist to abstain from voting for leader X due to this one inconsistency, or does such a purist stance represent a loss of wisdom? What is the inconsistency? Being a moderate in the abortion issue but I wonder how this would work with other issues as the inconsistency.