"Fixing" the culture includes a much much broader context than just what an individual professor preaches about to a set of students. It includes the entire intergenerational contract, earning the trust of students as well, getting their buy-in. There's a lot of cynicism and distrust against it all and a lot of disengagement because they just don't buy into it anymore with sincerity. It's not simply about scolding them a bit more and telling them that actually cheating is bad, mkay.

One place to start is to question seriously who actually needs a university degree and why, how this credentialism has been stealing years of productivity from young people. Though at least the deal was that in exchange you could expect some middle class job, even if gated behind a totally unrelated bachelor degree. But then this deal also got soured.