Marxists and "European-model" jurists especially sometimes allow their "judicial philosophy" to flex toward their own ideologies. I like to think conservative justices are more aligned with Federalist Papers-guided precedents.
For instance, Roberts did a Swedish-style act of slackivism in affirming Obamacare despite an obvious Constitutional conflict in declaring the non-participation penalty not to be a tax (requiring Congressional approval) when it obviously was.
Originalist is the way to go, in line with the classical republican dogma.
