The only problem with people is bragging. That is the number one culprit why people who do not know the victim's wealth find to know it. When it comes to financial information, we should be silent about it. Be a low-profile person and let them think that we are poor people, at least that will save us from many headaches and life-threatening situations.
We know who we are, so it does not matter whether they think we are poor as a rat or whatever, it is better to be belittled or looked down (even if we have more financial capability than they are) than to get into a dangerous situation.