I don't really care what they've done. All that I know is that the parties I've voted for generally vote in my interests, and that actual noticeable change comes from it. As a result I enjoy high standards of living. The impression I get from my government is that they're genuinely trying to make things better for their citizens (even if it doesn't always work out). That's all I really need to know.
If corruption/lobbying is somehow rampant, it hasn't stopped many legislative measures to protect my interests. A good recent example is the many actions the EU has taken against anti-consumer tech giants. I lobbying was a thing here, do you think that would've happened? God knows these companies have the money.
I'm not omniscient, but I think we're doing quite alright.
Arresting one man instead of changing the system that lead to his corruption in the first place. Classic.