The jobs in algo trading are very interesting for technically - mathéamtically inclined people. It’s really one of those fields where you have a direct impact on the results of your - measurable in additional dollars made.
There is 0 social impact. That’s the downside of course - but hey, how many jobs out there are really having any kind of positive social impact ? Not 0, but close to it.
That impact is not made by HFT - finding the right risk premia for different investments is very valuable but that is a signal measured over days/weeks/months because actual capital investment decisions take that long.
Intraday financial games are zero-sum. What HFTs gain, they leech away from mutual funds and pension funds and retail investors and market makers who operate over a longer horizon.
There is 0 social impact. That’s the downside of course - but hey, how many jobs out there are really having any kind of positive social impact ? Not 0, but close to it.