Exactly, the same algorithm should be easily applied to other crypto-currencies.
That's precisely what it came to my mind the first time came across Bitconnect. I think it basically steal the value of paper money and adds it to Bitcoin and other crypos.
My main concern is more of this (https://steemit.com/cryptocurrency/@ka82/can-anyone-share-his-her-thoughts-on-this) than what you raised above. But I think the whole purpose of cryptos is to engage everyone rather than make things exclusive for only a privileged few.