Can the Russia-Ukraine conflict lead to World War III?

Due to the restricting effect of MAD, we can be assured that although there are some very tense situations, it is improbable that this conflict will escalate. Due to the high-technology we have these days, the death toll and destruction would be incredible, with most likely NATO on one side and Russia/China on the other. I believe that although the two world powers most likely to engage in a conflict, that is, the US and Russia, would love to go to war, such a war would be likely to destroy the world as we know it, and no world leader would be willing to risk such a legacy.