Plain jute bags sell for 2sp on Galenia, even pristine jute sells for 3.5 to 4sp.
Although on our server jute stacks of 15 sell for 2sp so you can easily make 3 bags for sell them at 2sp and net 200% profit.
I think it's quicker to do WO batches though as you don't waste any gear and you can easily get 2sp.
I give my bags away most of the time.
If people are ahead of the game and price fixing i'm ok with that good luck to them. However, if it involves materials that other crafters need to level up then sigil should look into it.