There's a reason we don't see companies like Facebook or Amazon or Google launching a cryptocurrency. They are already too scaled up to avoid the regulators, and their entire mode of thinking is a centralized one of absolute control and regulation of intellectual property. Everything about these companies is the opposite of crypto.
When government is centralized (like in the U.S., with the federal government currently holding almost all the power, contrary to its founding principles), then the companies that are "too scaled up to avoid the regulators" simply co-opt the regulators to do their bidding. For example, as soon as Amazon was able to automate their processes so that they could profitably pay all their employees at least $15 per hour, they began intensely lobbying the central government to adopt a $15 federal minimum wage.
Large corporations welcome regulation because they are scaled up enough to absorb the additional costs and pass those costs along to consumers. However, small businesses cannot afford to meet all the regulatory burdens. As such, the regulations fully insulate the large corporations from any new entrants. They simply get to collusively play with their fellow oligarchs in a sandbox of their own making.