You could profit but don't forget to mention you could instantly lose in this scenario too. That is why this high risk high pressure scenario isn't followed by many, and it isn't because people don't like money. Because these kind of trades are hard to execute and require much studying of blockchains, orderbooks, richlists, and everything in between there aren't many day traders.
This is a common thing where certain level of risk would always level on the possible income that you would make,The higher the risk then the higher reward you would potentially earn but same as you said there are lots of people who dont tend to jump in into active day trades because if you jump in without proper knowledge then it would just like to be a suicide or you are just totally burning out your money.Sounds easy to learn up but would really be hard.