ETH is used by many bad guys. They have created a token with smart contract of ETH too easily and launched scam projects and mobilized a lot of eth from investors. You can see that a lot of eth is sold from ico so the price of eth is always low
Every network that offers censorship resistance will be used by bad guys, too. This is not special to Ethereum. If you want everybody to have access you also have to include the bad guys.
I think you are right, Ethereum and any cryptos in the market are used by bad guys. But I think the potential of ETH is obvious and the long-time investment of this cryptos are suggested to get a lot of cash when the market cap is flying up.