Dont judge others

Why am I annoyed with other peoples thinking?
I am not talking about what other think about me, but in general what other people think.
Like their opinions on say - Refugees or Muslims or Women or Love or Marriage what ever, Why do I care?

Is it right to care or wrong? Do I have a social responsibility to care?
Is that the same attitude Christian missionaries have, who think they know how to think better than others? ( i.e Bad)
Or Is it the same attitude as Eshwar Chardra Vidya sagar who abolished Sati and supported widow remarriage? ( i.e Good)?

When people say don't judge anyone, are they being a cop-put? Are they really not judging or are they taking easy way out of controversial issues and avoiding offending others ( which again may be good or bad) Then why do I care what other people mean when they day dont judge :D :P

What if Eswar Chadra had not judged women who were committing Sati? Many of them were not forced explicitly but they were doing it voluntarily, the forces which forced them to do it, was the subtle programming since birth by society- which made a virtue out of it, also the circumstances they would find themselves in, if they didn't do it. kind of like emotional blackmail. I see the parallels with hijab and husband worship etc which my friends indulge in.
But  how can I judge them, when I know that they are not responsible for it but the programming is? Did Eshwar Chandra Judge them? Did he take action without judging?
The opposite of judging is understanding, It looks like I am understanding, but then why doesnot judging go away? :-)