True - but he also instills his management philosophy in his acquired companies. CxO pay is also not as lavish as other companies.

From https://www.gsb.stanford.edu/insights/what-it-be-owned-warre...:

"The subsidiary chiefs also believe their companies’ performances are better under Berkshire (and even better than if they were stand-alone companies). Respondents point to Berkshire’s brand value and financial strength. Another reason? Berkshire lets CEOs focus on a longer performance horizon than they would expect under other ownership. Although each CEO varied on what that horizon would be, with estimates ranging from three years to 50, they all said Berkshire management encourages a long-term focus."

That's not a management philosophy? Berkshire Hathaway is notorious for being hands off. The corporate HQ has 20 people working in it. Buffett controls the money but the CEOs are free to run the business as they see fit.

Even by just taking control though they might be removing control from someone who wants to pump up the next quarters results.