World War 1 was not the kind of war that delivered freedom. It was more the kind that elites entered into without full regard of the costs.

An opinion that formed after the war, but not actually anchored in reality. None of the elite really wanted a war, some levels of the military did. Nicolas II raged against his generals that he did not want to mobilize and send men to their deaths. The German leadership didn't want a war, they thought it was inevitable but that they'd lose. The Austro-Hungarians definitely didn't want a war with Russia but did want to give the Serbs a black eye for the assassination in Sarajevo, and made a number of bad decisions. The British tried to stop the war and a number of politicians there wrote about the potential consequences before it happened.

In a way it's sadder than other conflicts: none of the participants entered the war for power or control, they all thought they were defending themselves. Plenty of people knew the human cost would be high. Events and fear and lack of fast communication just took over. And it set up the conditions for WW2 and probably the cold war.