Great news, I hope other billionaires will follow the same as it will push Bitcoin towards it's ATH value but this comes with great risk as well because the more rich people invest into Bitcoin the more it becomes like a gambling wherein they may cashout anything sending shockwaves across the bitcoin's community like whales did last time.
I think this kind of news nowadays has trigger bitcoin price to rise up to $17,000+ yesterday and if you are right, the other fellow billionaires will follow his footstep the price will gain another ATH and that would be good for the industry. as bitcoin being the top-selling cryptocurrencies in the market will gain another popularity to those people who still have a doubt in their heart to invest in bitcoin. Sometimes it just takes some time to gain its momentum but as they can see with their own eyes, it's happening right now slowly but surely.