This kind of has a very simple point - advice is useful iff your problem is caused by bad choices, and advising to make better choices can help. If your problem is caused by external forces that your choices can't change much, then it's better to devote all your energy to doing stuff instead of looking for advice on how to do stuff better, because there's no silver bullet, you can't do significantly better, and you don't need to waste effort on looking for it.
If after non-negotiable expenses you have barely any money to budget, then budgeting advice is useless as your budgeting choices don't matter much. Career advice, on the other hand, may be useful in that case.
If you're unable to work because of a disability or other factors, then career advice is useless as your career choices don't matter much, but financial tips on how to get the medicine you need in the most affordable way may be useful.