This Question is a bit funny because this giant platform you mentioned above didn't start out as a crypto backed platform and even aside that maybe they have no intention to tokenize their business, during the early days of PayPal, Alibaba, Google and the likes i don't think there was anything like blockchain so the platform was created to provide service to those who are interested which totally different now that blockchain is available and upcoming project will rather use it since it provide better service and accuracy in getting the job done, if blockchain was available then who knows maybe one among them would have opted for it.
It is obvious that they did IPO, sold a lot of their own shares and they made a huge return from it but also they have increased the amount of money company has as well. People think that if there is 100 shares of a company, and all 100 is owned by the owner, and there is IPO that 80% will be sold, you buy 80 shares of that company making people the new owners with 80%, and that money goes into the company to make it bigger? Most of the time it goes to the owner who sold his shares and now filthy rich.
Of course there are chances that people could give that money to the company so that his 20% with new billions would worth more than his old 100 that worth millions but that is optional and not forced. In tokenized world we are at least seeing what people do with their money and we know if it will go higher or lower in the sense that we know where our money goes instead of hoping about it.