I'm reminded of the classic Emo Phillips joke:

> Once I saw this guy on a bridge about to jump. I said, Don’t do it! He said, Nobody loves me. I said, God loves you. Do you believe in God?

> He said, Yes. I said, Are you a Christian or a Jew? He said, A Christian. I said, Me, too! Protestant or Catholic? He said, Protestant. I said, Me, too! What denomination? He said, Baptist. I said, Me, too! Northern Baptist or Southern Baptist? He said, Northern Baptist. I said, Me, too! Northern Conservative Baptist or Northern Liberal Baptist?

> He said, Northern Conservative Baptist. I said, Me, too! Northern Conservative Baptist Great Lakes Region, or Northern Conservative Baptist Eastern Region? He said, Northern Conservative Baptist Great Lakes Region. I said, Me, too!

> Northern Conservative Baptist Great Lakes Region Council of 1879, or Northern Conservative Baptist Great Lakes Region Council of 1912? He said, Northern Conservative Baptist Great Lakes Region Council of 1912. I said, Die, heathen! and I pushed him over.

> On a larger scale, big tribal feuds are often among groups with small differences, like Christian denominations and wars over dogmatic debates on the details.

Did you have a big Christian war in mind which was specifically about dogmatic differences, and not primarily about monarchs exerting their power over some group or another?

Some that come to mind

The Byzantine iconoclastic controversy 8-9 centuries weakened the Empire.

Some bits of the ECW (bishops wars) where religious.

The northern Crusades (much more savage that the eastern ones)

The Hussite Wars

I think the modern version is Islamic- you see many Sunni nations more willing to work with Israel than Shia Iran.

Christianity is not an explicit part of any modern state outside of the Vatican that I'm aware of (with a small technical exception for Britain's monarchy.)

Mount Athos has special autonomous status within the Greek Republic; the Orthodox equivalent of Vatican City for the Catholic world.

(Not the OP)

How about the Albigensian crusade?

https://en.wikipedia.org/wiki/Albigensian_Crusade

Also, possibly, sectarian violence in Ireland.

Ireland's feuds aren't sectarian, they're ethno-nationalist. We call them "Protestants" and "Catholics," but really what those names mean are "the group in Ulster and especially in Belfast, whose ancestors colonized the land for England, and a few who cooperated with them" and "the rest of the country whose ancestors lost their war and had to put up with being second class citizens oppressed by the British military and police well into the twentieth century."

And even if the British monarch is a figurehead today, the legacy of violence goes back to the Tudors.

>> The best tactic at work is to be really competent in the main job and push all energy into furthering the skills and experience and recognition in that and dodging all the crap work by appearing badly suited to them.

You can just say "no" and avoid all this. I figured that out as a junior programmer, when a middle manager asked me to create a graphic on a day when everyone else, including all the design team, was in a hackathon (I was stuck working because junior programmer).

It wasn't even a thing I had to think very much about. I was so annoyed to be asked to do work nobody hired me to do that there was no doubt in my mind about the correct response. I dont' think it even crossed my mind to do the job but bodge it. That would mean I'd actually have to, you know, do the job.

So while I recognise the situation, that once you pick up a task you're stuck with it forever, like it or not, I disagree with your tactic. Spending time doing work you don't want to do but badly is just wasting your time and it should be avoided.

No good deed goes unpunished!