I do think some people over fixate on Warren buffets strategy. His current one has moved away from wealth creation to maintaining the value he has built up from. His strategy and ultimately to keep the insurance company's reserves high.
That is one of the reasons why Buffet's strategy won't work out for a regular person.
Another one is - you don't need to invest in something with extreme growth rate to gain decent profit, simply because of your wealth you already have.
Moreover, sometimes you don't even need the profits when you have enough investments so you can live off of dividends solely.