I do not understand your question very well, are you saying that it is a scam because before it was easier to mine? if so, that happens with any resource, for example, gold could be easily removed from the rivers, now you need a whole company and miners to mine the material, while a resource is discovered only some take advantage of their early stage while establishing its position in the market.
Gold was spread over the world in the ground, it couldn't be mined by small groups . Bitcoin wasn't equally distributed. Only small groups got them in first 3 years. If they wanted to be a fair currency, they could write bitcoin core to release reward in equal amount proportion. Not 50 btc at every 10 minutes at beginning when nobody knew about it.