I certainly play more music now than when I had to change the tape, but without the ritual and the intent, I listen a lot less. This changes my value from streaming over simply not having to store my music library locally.
It doesn't cost an artist more to be played more, but it does cost the streaming service. This may bring more casual listening and help some artists, and "underpay" someone who's more famous and would get the bulk of the first-song play that comes from intent. I don't think it's "wrong" but it may be the wrong fit for any given artist.
If they don't decide that, then of course, maybe you just can't make a living selling music through Spotify.
You could probably make a living as a musician in other ways, though.
Youtube for music is simply worse than pirating and being caught.