Not sure I understand what you mean. It's a motivational speech like many others. Goebbels was a brilliant public speaker, no doubt. But he wasn't a social wizard who cast an evil spell on the German population, the way people who like to mysticize Nazism often portray him as. Such speakers still exist today, the same old populism still works great. The dangerous part about fascism is exactly that it wasn't a one off terrible mishap, it's a regular occurrence. The Nazis most certainly made all kinds of positive promises, they were the whole reason they got elected. They promised to fix the economy, fight unemployment, fight back against the unjust Versailles Treaty, support families, bring political stability and make other countries respect Germany again, etc... Just look at their campaigns and posters.