Democracy is supposed to be more involved then showing up every 4-5 years.

For most Western democracies the reason governments have been increasingly aligned with corporate interests is those have been the interests actually doing the hard work of democracy. They gather like minded people together, lobby, and keep sustained pressure on elected officials. They constantly work at a democracy whereas most people seem to think politics is an every 4 year divisive inconvenience that's best not discussed.

In other words, democracy is captured by corporate interests precisely because they lobby daily whereas most people can barely be counted on to show up to vote.