[run4yourlives2]

>I refused with the argument that it wouldn't benefit any of us and I explained why.

That's a bit of a lesson learned in terms of "Things not to do in your first week".

Aside from criminal activity, I can't think of any situation where you were in a position to understand things better than the person asking you to do the task, and even if you where, where it would be a good idea to make such an immediate disagreement vocal and public.

You should probably test the mileage of making an apology for trying to assert yourself over a senior person (regardless of whether or not you are in fact correct) in your first week before you do anything, really. I have a funny feeling that it might go further than you think here.