What is about this 'Dr.' tag

I was recently going through a couple of profiles on 'Orkut' when I came across the 'Dr' (doctor) tag before their names. Now why only 'Doctors' and 'Phds' have to attach this tag before their names. Why isn't there a tag for simple engineers like us?

It makes me feel less important if I don't have a tag in front of my name. I say..."What after studying for 23 screwing years, I don't even get a simple tag". Not a suffix tag like like B.Tech or B.E but a prefix tag like 'Dr'.

I am currently thinking of tags like
Er. Saurabh Chobe - it feels like someone is stammering
Br. Saurabh Chobe - it makes me a bachelor for rest of my life.
Mr. Saurabh Chobe - anyone can have this tag so its useless
Eng. Saurabh Chobe - makes me feel like an engine
Zr. Saurabh Chobe - ahah here is a powerful tag...makes me feel important

From now on I am not a plain engineer anymore but a 'Zr.'

Mail me what u think would be a good tag and we will incorporate this tag in the society.