The Japanese may internalize it in a different way and also feel extremely at fault for whatever happened. In many cases this kind of thing can lead to suicide.
If you have a dream about disgrace, the dream meaning will come from your knowledge of where it comes from, really. You need to know why you started to dream about disgrace and you need to know in the dream who was disgraced or where it was felt. For example if you have a dream where your performance was disgraceful then it means that you are not confident in your abilities even though you are in a position where you really need to be. If you have a dream where someone else disgraces you then this means that you are losing your faith in this person in real life. You should try to give them more opportunities to prove themselves before you lose all faith in them entirely. This would be the gentlemanly thing to do, to give them another chance even though they might not deserve it or it might be difficult for them.
If you dream that you are a disgrace it essentially means that you have disappointed yourself recently. You probably undertook some sort of act that you just weren’t ready for, you failed it and suddenly you felt terrible about it. Now you’re trying to think of a way to make up for this egregious act and you can’t seem to think of one. You’re going to have to get over it somehow though or this will just lead to even more complications later in on life.