This is partially an answer to Bonald. I do appreciate how from a Western, especially Christian angle Buddhism sounds dangerously similar to the kind of Enlightenment, liberal-modernist ideas that led to the decadence of the modern age. Yet I think the similarity is superficial and one should not simply judge by analogy. The basic problem is that the whole historical setup is so incredibly different in the West and Asia that you almost cannot really compare and relate ideas so directly.
The important thing is that in Asia religion, philosophy and politics has never been so intertwined as in the West.
Politics in Asia, like in Europe before the Reformation, was just about playing the Game of Thrones. Various powerful guys contended for more power. But it was not supposed to have any effect on the structure or rules of society. Things like the caste system weren’t a political question the same way in Europe, 1250 or 1477 politics wasn’t about whether the privileges of nobility are okay, but whether you support the Guelph or Ghibelline factions, or where you stand in the French version of Game of Thrones. None of the factions were liberal or conservative or anything remotely like that. They were just after power. And Asia rolled like that, too. The whole idea of politics as a way of restructuring society or changing the basic rules to live by is just as un-Asian as it is un-European in the older sense. Reform simply wasn’t an conceivable term.
And Buddhists shouldn’t be seen as political or religious reformers. They should be seen as a monastic sect, or a special group of philosophers who also try to live their philosophy, like the Stoics, as a fairly small and elite group living apart from society and NOT trying to affect society as such.