I've never felt sanctions would hurt Putin's military. And can't recall any other person suggesting that either.
I can imagine more missiles and bombs falling more quickly on Ukraine though, if NATO became more directly involved.
I honestly feel more NATO involvement right now would mean more death and destruction in Ukraine, more quickly.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”