There was a study on the efficacy of paracetamol with ibuprofen compared to morphine and it was a very close thing, within the margin of error. The combination of paracetamol and ibuprofen works on pain in two different ways at the same time, whereas opiates only work in one major way. It seems overall more effective in many cases.
That said, some people report that morphine doesn't remove their pain as much as it removes their caring about it. It reduces the salience and therefore makes them respond less. I don't know from experience given the lack of response, but maybe that is part of why it is so addictive, you don't have to care any more about pain or other issues.
True, kebabs are life, I would happily have one right now.