Exactly. While not many cryptocurrencies are in the same level as Ethereum, then can virtually compete with it by adopting smart contracts. Cryptocurrencies such as NEO, EOS, Cardano, Qtum, and even aeternity have the potential to outperform Ethereum with their high scalability and cheap costs. However, Ethereum has retained its status as the second largest crypto by market cap because it has confidence from mainstream companies, businesses, and individuals alike.

Which means that, Ethereum might remain as the leader of smart contracts within the future. Of course, we cannot ignore other alternatives, since they're currently faster and even cheaper than Ethereum itself. Despite this, any smart contract platform be it Ethereum, NEO, EOS, or Cardano, will eventually be adopted at a large scale within the mainstream world. Just my opinion