Why should I, as an atheist, be expected to show respect for Christian, Islamic or Jewish cultures whose views and arguments I often find reactionary and often despicable? Why should public arrangements be adapted to fit in with the backward, misogynistic, homophobic claims that religions make? What is wrong with me wishing such cultures to 'wither away'? And how, given that I do view these and many other cultures with contempt, am I supposed to provide them with respect, without disrespecting my own views? Only, the philosopher Brian Barry suggests 'with a great deal of encouragement from the Politically Correct Thought Police'.
The largest event we ran at Microsoft, Design day (500-600 people), saw the introduction of several different formats to break up the monotony of lectures and panels. Using an idea I’d seen elsewhere, we created a session called 99 second presentations. We had open submissions (which we selected from) for people to speak at the conference on any topic for, you guessed it, 99 seconds. This had three effects. First, it drew people in. They’d never heard of this, and since it sounded like a potential disaster, many people came to watch. Second, there are lots of smart knowledgeable people who don’t have the interest or time to make 45 minute presentations. But a 99 second presentation everyone has time for. So many voices at Microsoft that hadn’t been heard before were encouraged to surface.
The same UN document offers a concise history: "[T]he notion of social justice is relatively new. None of history’s great philosophers—not Plato or Aristotle, or Confucius or Averroes, or even Rousseau or Kant—saw the need to consider justice or the redress of injustices from a social perspective. The concept first surfaced in Western thought and political language in the wake of the industrial revolution and the parallel development of the socialist doctrine. It emerged as an expression of protest against what was perceived as the capitalist exploitation of labour and as a focal point for the development of measures to improve the human condition. It was born as a revolutionary slogan embodying the ideals of progress and fraternity. Following the revolutions that shook Europe in the mid-1800s, social justice became a rallying cry for progressive thinkers and political activists.... By the mid-twentieth century, the concept of social justice had become central to the ideologies and programmes of virtually all the leftist and centrist political parties around the world..."  :11–12