alt Hacker NewsCulture is a pendulum, but humans are consistently greedy.
"Journalistic integrity" was a marketing concept designed to sell newspapers at a time when there were hundreds and most were inaccurate. It was extremely profitable to have ethics. (A good reminder that noble minded Benjamin Franklin ran his own periodical that he regularly and intentionally slandered others in.)
Now we have an entrenched media (with their own ethics problems) and there is opportunity to start pumping out garbage again.
As Voltaire said, "History is only the pattern of silken slippers descending the stairs to the thunder of hobnailed boots climbing upward from below." In other words, progress has to be fought for from hard lessons, but once that progress is taken for granted, people let it slip not knowing the value of what they have.
Yes, humans can be greedy - but the question is whether we design our society to encourage and legitimize that greed in every sphere of life, or whether we maintain non-market norms that check it. The journalistic integrity example proves my/Sandel's point; when ethics became profitable, the market accidentally aligned with civic good. But the concern is precisely about areas where market logic systematically corrupts rather than improves outcomes - ie. where introducing money changes the nature of the good itself (like turning civic duty into a fee, or learning into a transaction). The pendulum swings, yes - which is exactly why we need ongoing public debate about where markets belong, rather than passively accepting their expansion into every domain and hoping the pendulum swings back on its own.