Winlkevoss twins owning 1% of bitcoins. Yes it is a choice they made to buy those coins. I am fully aware they own that many. If they want to buy 100% of the coins that is fine too, I expect that will be very costly. Its a matter of free market demand. They don't control the bitcoin network any more than the other 99% of owners control the network. If the 99% sell of bitcoin to 0 then the Winklevosses lose. They took a risk. But having 1% of anything is not control. Tell me where you can own 1% of something communal and have control over the 100%. Lol
The FBI owns 144,000 coins. This is even sadder than your winklevoss argument because their bitcoin stake amounts to 1.2% of total bitcoins and their "ownership" is only as an asset in a criminal investigation that will be auctioned off to the public when the investigation is complete. So they did not purposefully take the coins to "control" the network. What the buyer does with the coins is up to them. Free markets dictates that.
Bitcoin price manipulation. That entire article is conjecture. There is not fact behind it. The bitcoin market is controlled by market dynamics. Bitcoin ownership by account.

Compare that to the United States wealth distribution

Now compare how much control the creatores fo ripple have over XRP. Oh yeah...
"Ripple is a scam! Ripple is a get rich quick scheme for it's creators, a private for-profit company. It is NOT open source. It is CENTRALIZED, akin to PayPal rather than Bitcoin. For more info, visit RippleScam.org."