Worse yet, they frequently seem to do this by subverting our public officials. It's reached the point where our regulatory institutions and even our government appear severely compromised by the financial concerns of corporations. If our elected representatives need corporate money just to get elected, how can we rely on them to represent us on issues that might run against the interests of those corporate donors? Direct public action, such as protests, seem to be the last recourse left available to us on certain topics.
When you have a large, enormously successful company sitting on gargantuan cash reserves not paying its taxes and getting away with it, you have a problem. Apple probably isn't even the worst offender, but they're famous and have a built in hate-club (anything that inspires fans also inspires anti-fans). While this protest only had a few hundred supporters, that's pretty incredible for this kind of topic. Hopefully this sort of protest happens more often and gives tax-evading corporations pause.