The high cost of gas on the ethereum network may not affect investors who have a lot of money, there are currently many DeFi platforms on the blockchain network such as Tron, Waves, BSC, Eos and recently I saw a new project running Tesnet on the OKexChain Network.
There are many DeFi platforms that we can use to make a profit today and don't worry about high fuel costs because you can use other blockchain networks.