Flaunting your wealth is an invitation to criminals.
Showing wealth publicly is like a pot to attract criminals.
Although it's kind of hard in the age of internet
Internet or not Internet, you can always hold your wealth for yourself and don't need to show it off to the public. If people shows their wealth on Internet through social media, it starts with their appearances in real life already. They show their wealth offline first, then publish it online through Internet and social media.
So don't blame it on Internet, but must change themselves first with offline appearances and activities.
Yes that is good idea. It is important to keep low profile no matter what we have. Show off our wealth can attract bad people like hackers and scammers.
People don't need too much things to have and enjoy good lives and it's nothing wrong to be rich. But if showing your wealth means more risk on your life, you need to be careful and keeping low-profiled life is one way to gain safety.