Who Wants A New World Anyway?

I am going to extend the question of whether people should have a right to their own bodies, to also encompass their personality and behavior. In A Brave New World, this question/debate arises between The Savage and Mustapha Mond. The whole debate, to me, was built upon the fact that Mustapha Mond's society is purely based on the happiness of the individual. That happiness is the sole reason for their "stability" of society. While The Savage wants to feel pain. Where he wants to be able to make his own choices, and be able to live with there outcomes. This debate is a clear example of the ethics and morality of biopolitics, and the effects that it can have on society.
Mustapha Mond's society is a stable society which he attributes to the happiness of its people. Mustapha says, "Technically, it would be perfectly simple to reduce all lower-caste working hours to three or four a day. But would they be any happier for that? No they wouldn't..." He then goes on to say, " We dont want to change. Every change is a menace to stability. Thats another reason why we're so chary of applying new inventions. Ever discovery in pure science is potentially subversive; even science must sometimes be treated as a possible enemy. Yes, even science... It isn't only art that's incompatible with happiness; its also science." If this doesn't show a society that is controlled by bio-politics, i dont know what one would look like.
From what I know about science, the main reason that we are on earth is due to the fact that we want to reproduce and pass on our genes. It isn't that we need to be happy all of the time, and that we attain a perfectly stable soceity. Of course those are things that we strive for everyday, but that is not, atleast to me, the purpose of human life. We are supposed to try and understand things that we dont understand. The unknown IS innately frightening to people, and we try to understand as much as possible. However, i believe that happiness is a secondary goal to human behavior. It might seem that the reason why people behave the way they do is to attain the most happiness as possible, but the only way to do this is to understand the world around us. And as we better understand the world around us, we are better able to cope with things that do not help advance our goals, thus making the individual able to be happier. So this long rant about happiness and biopolitics is meant to show that people and society do not need to be happy all of the time to live. Just because we have the technology to cut a limb off without killing the person, does not mean that we should put it into practice because it will make the person happier.
But what about happiness. Isn't it a human right for everyone to be happy? No, i do not believe this. I believe that all people have the ability and chance to be happy. This is my main concern with Mustapha's society. I think that he treats everyone the same, but if every person is different, shouldnt we all be treated on a case by case basis. I know that I am rising a lot of question, and in not a very straightforward approach, but this was how my brain was working while reading A Brave New World.
As I was reading these two chapters I was reminded of a philosophy class that a took in high school. I forget who we were reading, maybe Socrates or Aristotle, but we came across the issue of dichotomies. That everything has an opposite in the world, and because of this we are able to define and know the difference between things. Hot has cold, high has low, east has west, but while i was reading these two chapters i was wondering if people never experienced sadness and only experienced happiness, as in Mustapha's society, would there even be happiness. I know that i am making the assumption that sadness is the opposite of happiness, but just go along with me on this one. How would someone know that they are experiencing happiness, if there was no opposite that was ever experience.
I have said a lot of things in this post, and hopefully you were able to follow my arguments and the side that i took. There will definitely be more posts about A Brave new World, cause it seems very interesting to me.