Depending on degree, I think the opposite might happen. IF the mess derailed the economy even worse, the under-regulated financial business is going to look even more predatory and campaign bribes/contributions are going to be looked at as poisoned money. There would be cries for public lynching of some of the worst thieves and lax watchdogs in the lot. As it was, the 2008 failures really destroyed a lot of middle-income folks.
I think
@interpoltomo 's point is, it was really bad OTL, while Obama's election in 2008 coincided with quite a blue wave in Congress, both houses. As far as partisanship went the stage was set for very sweeping repudiation not just of Bush Jr's monkeying around but going all the way back to Reagan's first term--final repudiation of Reaganism and the launching of a new political paradigm. So one might conclude from counting names with D's after them in House and Senate.
Instead Obama and the House and Senate leadership blew it. It is a deep question, whether they did so inevitably because of the exact nature of the apparently monolithic Democratic majority--was it in fact a composite of radicals lacking national traction and credibility and and a bunch of deeply conservative types who might more reasonably have voted as moderate Republicans? Were they elected by an American people deeply fed up with the dysfunctional neoliberalism of Reagan and successors, wanting something more comprehensive in the way of populist state activism than Clinton ever offered, as I frankly hoped? Or was the electorate more conservative even than that that elected Bill Clinton in 1992--note that Clinton never enjoyed a popular vote majority and in '92 considerably more people voted for either Bush Sr or Ross Perot--and the tidal resurgence of the Republicans via Tea Party activism truly expressive of the authentic American mood?
In the latter case of course Obama and Democratic leadership would have merely cooked their own goose more in daring to go all FDR on Reagan's Harding-Coolidge-Hoover act. But I think that while probably the average voter of 2008 would not be prepared for deep radicalism--such as a hard push for simple Medicaid-Medicare for All universal payer medical reform, or a deeply comprehensive financial reform restoring pre-Reagan era protections and indeed revamping them to more modern conditions, massive infrastructure investments to give the "stimulus" a quicker and harder punch, etc etc--if it were done quickly and done well (almost, you know, like the Democrats might have used a near decade in the wilderness to prepare for this day with well thought out measures to both address the immediate crisis and a deep approach to anticipate the next one--or at any rate the years of meltdown between the Democrats regaining the House in 2006 and the Presidency two years later) then I think with good results benefiting real people already by November 2010, the Republican resurgence of that year might not have happened.
It is my view that the matter was not decided by the mood of the American people nor their limits, but rather that of Democratic leadership. Notably Barack Obama did not believe in the deep radicalism his foes (on the right) loved to assume. He is not, was not, will not be a socialist. He did not as I hoped rescind Bush Jr's imperial presidency powers such as declaring enemy combatants, he did not seek to throw Bush admin types behind bars for their trampling all over the Constitution. He believed and believes in business as usual. Like Clinton before him he was basically what a moderate and rational Republican president would be.
Similarly the rest of the ranking Democratic leadership was stuck in a time warp of DLC dictated triangulation, not noting the wind had shifted considerably and the smart way to make speed would involve steering in quite a different direction.
So, we don't so much need a POD of worse financial collapse as we need one of changed Democratic leadership in the mid-2000s.
One has to wonder what would have happened if Paul Wellstone's plane had not crashed in 2002 for instance.
A single leader does not a movement make though.