Although talleyrand's orthodox principles met the needs of metternich's restoration of feudalism, they played a role in protecting capitalism and maintaining the stability of European order. Talleyrand is a bourgeois politician, and his clients are completely different from those of metternich.
Napoleon was a challenger to the traditional order that rose in chaos, but at the same time he challenged the traditional order and inspired nationalism and liberalism. The way of his challenge directly plundered the territory of the "revolutionary object", which was a direct act of aggression and eventually led to failure.
Bismarck was also a politician representing the landlord class. He unified the small Germany controlled by Prussia, and the "iron and blood policy" was an intuitive embodiment of Prussian militaristic tradition. Bismarck used capitalism and protected feudal forces, and finally helped William I establish the feudal German Empire.