The greatest benefit that Hitler gave us was that he "stalled" banking a bit.
Throughout all time there have been the shrewd sharks, bankers, that prey off the ignorance and naivety of other people. When the Jews came along (some 3,500 years ago or so), they happened to be a shrewd enough group that they took over the banking... gradually... of the whole world.
All the wars are bankers' wars. It's all about money control, economy control, and world control thereby.
Hitler was right to want to stop the Jews. His methods were wrong. Probably he had no chance to destroy them no matter which way he went. They wound up destroying him and his agenda. They used the USA to do it.
Bankers are shrewd. They have no conscience about making any kind of holocaust anywhere in the world. The thing that they care about is the method, and who gets the blame. After all, if they destroyed the world, they wouldn't have anything to rule over. So, they would rather "farm" the world.
Some animals on a farm are milked. Others are slaughtered for meat. The various grains and alfalfa are planted and harvested. That's all the banker-Jews think of the world and the people in it. The people are the farm animals. The crops are world resources.
Who knows what would have happened if Hitler had won? More than likely he wouldn't have been able to hold the world if he had won it. But, if he had won, the great Jewish holocaust that Stalin did would have been avenged. As it is, the Jewish bankers go on their merry way, making holocausts around the world wherever necessary to further their worldwide control.