yes steem is a profitable investment, you can probably make 4x a year on your investment at the current network size, whether you invest 10$ or 1 000 000.

That is a good thing, start investing and using your shares to vote what you believe in.

check out my protest song to the flag wars

https://steemit.com/openmic/@lanmower/steemit-open-mic-week-88-original-moonshine-just-vote