Knowledge is power.
This type of people are jeolous of others, I have observed if someone is progressing or someone's son has got a good job these jealous people will discuss this issue with like minded people. Their intention of discussion seems to be bad.
Keep your Face to the SunShine
" Be Good and Do Good "
But this cannot be so if it is for our close persons or to our house. Our mind normally circulate over there. If our relative or child of relatives headed or found not well, we took more care and even help them to get cured.
If it is for blood related the mentality of ours will be worse and restless till we hear they are normal. They or others may comment on our such thought as why should bother like this.
Practically it is inevitable.
I have seen some people try to advise others with good intentions but by any chance, if it backfires we will feel that we misguided the other man. That is why one should try to avoid too much interference. First, let us understand ourselves. Let us introspect ourselves and if there is any need let's adopt the changes required. Let us not show unnecessary interests in the matters not pertaining to us. This attitude will be always better.