Michael, in what we call "nonviolent" protests against the war industry here in the US, there are often petty, symbolic acts of vandalism against government facilities. Those who oppose the protesters, often try to make a big deal about how horrible this is - but most importantly, antiwar protesters don't hurt anybody. And in overturning tables in the temple, Jesus did no physical harm - there's no evidence that he even damaged anything. He just made a mess. But it's clear he made a big impression.

In most situations, I would suspect that you would be appalled by the hypocrisy of the moneychangers. But since it doesn't suit your purposes in this situation, you take their side.