Teller touches upon this subject. In an interview published on YouTube, he says, increasing scholarships and science funding further doesn’t help; because money doesn’t buy science, money buys technology; we actually don’t have enough scientists on whom to spend the money. And that, most of the advances in quantum mechanics and atomic physics were made by individuals genuinely interested in problems in these domains, and worked in modest conditions. Quantum mechanics theory took practically nothing to develop.

Politics, of course, is part of the humanity, but it manifests differently in different environments (academia vs industry, or then vs now). There is undoubtedly politics in industry, however, there are also products and reality checks. The companies won’t survive if they operate entirely based on politics. In academia, on the other hand, the environmental feedback can be weaker depending on the subject; there, politics could come to the fore. Amusingly, Kissinger said, politics in academia is specially vicious precisely because the stakes are so low.

As for then versus now, there used to be a lot of low-hanging fruit that could be taken until 1980s, and there weren’t many researchers. But now there are fewer accessible opportunities, with far more researchers. If you consider that the size of the cake has not increased proportionally (due to factors mentioned in the article), while the number of players has increased substantially, you may conclude that the environment has become much more competitive. Increased competition indicates increased politics, emphasis on selling, networking, and other non-scientific factors relevant to industry, except there you actually get paid. The conditions are nowadays totally different. There all sorts of performance metrics (H-index, citations, number of papers etc), that have become target, in place of good science, which are gamed.