Lafayette kissed the hand of Marie Antoinette on 6 October 1789, in front of a crowd, many of whom wanted her dead. This action momentarily spared her.
Do you really know who was Marie Antoinette? If you did, you wouldn't reblog an image of her. She just cared about her own luxury, and didn't care about people. While she had a large table laden with various types of food just for her (to pick just one in hundred percent of food), people of France were in awful misery, wanting a piece of bread, for once. When they showed their discontent, she just said "Let them eat cake". She was reckless, naive and deluded by her own vanity.