Bitcoin is known as the first digital currency and that is why it is the father of all crypto currencies. So bitcoin has all other coins being developed to achieve the goal of bitcoin and that is why it has influence on all other coins in so many aspects, especially in term if price control. So do not compare ETH to bitcoin because ETH is still under development, it is still under growth looking up to become successful in the crypto market one day like bitcoin. If you check the value of both coins you will see it is a very huge difference of bitcoin $7,000 and ETH just $295. So do not compare bitcoin to ETH because bitcoin is the best crypto coin.