Because it is irrelevant. The concentration of power is one thing, but the complaints here are against the shameless rent-seeking. Open access publishing would not take away from anything the OP is extolling the values of.
Couldn't you just post your own thoughts instead of downvoting my comment then? Or if you find it irrelevant just ignore it? What does downvoting add? Personally I don't care if you want to downvote, but your justification doesn't make any sense.