Goodhart's Law will always be a factor, and "the bottom line" is largely the ultimate perverse metric for Goodhart's Law. If doing something everyone hates still has a chance to increase revenue, it's still "winning" to management.

Low quality "spam" tactics still reel in enough fish to be monetarily worth the "backlash" from customers that find it distasteful and or start to lose trust in the company. The "We promise we don't spam people" metrics and "Consumer distrust" metrics don't talk enough to the "revenue" metrics, but especially have very different cycles: big customer satisfaction metrics like J. D. Power are big annual things, not quarterly reports like earnings. In my experience things like "how often are we calling the same disinterested people to the point where it starts to feel like very personal spam" metrics don't ever really get prioritized in internal reports unless there's enforcement from Legal departments, and even then Legal departments can't "upset the bottom line" and only care about such compliance when it becomes News and/or Lawsuits, both of which don't even merit even an annual review cycle. (In fact, the modern class action lawsuit pretty effectively prevents that feedback mechanism from cycling, because generally the terms of agreement in a settled class action lawsuit is that the class is no longer allowed to sue again for the same problem, even if the same problem keeps happening and is never actually fixed.)

Unless quarterly earnings reports need to include things like client satisfaction and spam tracking, the only metric management will continue to care about, because it also is the only metric shareholders claim to ever care about, is the "bottom line", no matter how ugly the sausage is made to bump it from quarter to quarter.