yes democracy today that east is adopting is from west, but even in west who try to adopt ideas from each other Miss MUNNAZA their intelluctuals tell their policy makers that the best idea or policy is the one which is good enough to be adopted by the people who are going to use it, that means 'localise' it in best possible ways.
so really its not about just copying democracy and liberalism as it is but it should be adopted to suit your needs.
End of the day do you do things for your interest not for others. A good, learned and educated human being and a muslim should see what is best for him as long as its not harmful for others, and that is liberalism.