Earlier quoted context omitted.
That leads to short term thinking and pumping of stocks, often done by firing R&D and maintenance people.
A major example of this was the decline of Intel (that they are trying to reverse) that was driven by an inane diversion of $$ by accountants who spent billions on 'share buybacks' instead of R&D = the inexorable fall from grace. I have never understood this buyback philosophy and spoke against it(my whispers in a hurricane). It was done to increase the share price - it failed, buckets with no bottoms are hard to fil…
Buybacks come from net income (profit). A business always has a choice of using the profit to pay the business’s owners (via dividend or buybacks) or to invest it back into the business (such as spending on R&D).
Obviously, what portion of the profit is ideal to spend on R&D and what portion of the profit to pay to owners is not an objective truth.
And buybacks are nothing special, except that they allow more flexibility in how to reward the owners.