Is this sarcastic remark aimed at the flag or are you talking about something else? If it is about the symbol called the 'Swastika' then as far as I remember, and others can verify this... the real reasoning behind the rune symbols and the 'perfect man' (Aryan) came from professors that had taught Hitler about these things. They used Hitler as a means to broadcast it, because he could do it so well. If you want more in depth views a quick link comes up here: Origins
By the way, this symbol has many meanings in other groups, for instance, in the Hindu religion I believe it symbolizes eternity and you can see it at the top of their temples.
Actually there were attempts... many times, but he seemed destined to be the incredible monster that he was. Actually, many believed that there worst men than Hitler in the ranks and removing Hitler would of actually made the war worst.