It does seem to be true that voters are often content to select and re-select congressional representation that will hide from too much critical attention, give evasive responses, or otherwise dodge direct accountability.

People's stated preferences are as you say. Most agree we'd like responsive representation that's conscientiously engaged in opinion gauging and fact-finding to determine what the people want and need. We can even select for those preferences, and be consistently unkind to those who are evasive. Yet we're not always consistent about that, and different preferences are often revealed at the ballot box.

This is the inescapable fact of the electoral system: officeholders are selected by voters in elections. There is no other mechanism for selecting them. That's a key difference between your other "is like" examples and elected representation. Pollution and health care are interesting problems to consider in their own right, they even have collective action components, but they also both actually have other identifiable agents and dynamics to whom more of the responsibility can be assigned. When it comes to elected representation, not only are there no agents with more responsibility, there are no other agents with power to select representation. Who else can bear ultimate responsibility for who is selected and how they govern?

You can identify things that make it difficult for people to meet that responsibility productively, and that's reasonable enough, all my comments here are essentially identifying the psychological barriers that assign agency elsewhere, and I'm happy to talk about others.

But there is no other place responsibility lies. The hands on the levers are ours collectively. No one else is coming to save us but us. No system fix will let us run on rote habit and get better results (and also, to fix the system, you have to work to win big under the system as it is).