Major corporations have already started buying Bitcoin. Everyone in the space must have heard about MicroStrategy and Square. Berkshire Hathaway invested half a billion dollars in Barrick Gold, a gold mining company, earlier this year. Warren Buffett invested in gold for the first time after decades of calling gold an inferior asset (which it historically has been compared to stocks).
Warren Buffett has infamously called Bitcoin "rat poison squared". If it transpires during Buffett's lifetime (I'd really like him to live long and be around when/if that happens) that the dollar is ousted as the global reserve currency by Bitcoin and BTC rockets, do you think Berkshire Hathaway will at some point start panic buying Bitcoin under Warren Buffett's direction? :)