Does not sound as a healthy family dynamics.

Healthy dynamics would be: they talk about their problems and you offer your help, based on your availability. When family actually asks for money I am happy to help all the more.

I want criminals to leave me be because they know my income.

I really don't understand the criminal's point: it's like people ordinarily live in rags to hide their availability. This is not how it works, as I can see: people typically try and show off more than what they really have, why aren't they afraid of criminals?