100% Agree.

> Basically we work for clients and if they ask that we need
> this output from this input then we don't thing about it and
> get the result.

I guess the definition of professionalism is that if you're a professional,
you advise the client when he gets the requirements wrong, and if you're
not, you build whatever rubbish he asks for.

Michael Kay
http://www.saxonica.com/