The masternode site lists it based on an (incorrectly calculated) ROI based on fiat.
The site is probably not controlled by the same people as MedicCoin so it is unlikely that MedicCoin is to blame for the error.
It is concerning that:
https://masternodes.pro/disclaimerThe company name and address:
MasterNodes.Pro, LLC
PO BOX 131 Gainesville, MO 65655 could not be found on the business registry:
https://bsd.sos.mo.gov/businessentity/besearch.aspx?searchtype=0Their domain is "private registration".