Some people really should not be allowed out on their own.
Comedy genius.

The RTP would be 99.5% giving a house advantage of 0.5% if everyone played basic strategy perfectly. They don't. Most people haven't even heard of basic strategy and donk their money away with shabby play. Thus the RTP is lower and the house takings higher. Realistic house takings at live casinos are in the 2% region too.
but GreedyDog, go to the casino!