I would talk to your DM about a possible alignment shift again down the line. If they keep this up and you stick to the pragmatism, maybe Lawful Neutral is more your flavour.

As for now, don't ever change. This is a learning opportunity for them and who knows, maybe you'll convert one of them to Competent. By allowing them to fail and suffer, maybe they'll just go with the plan and learn to like it. There is a sense of glee from a plan well executed.