It may be not be the best interests, you are right.

But greed will bring bitcoins down. The human nature of greed.

They are disrupting the bitcoin ecosystem, even if they don´t know about.

I can only see bitcoin prices dropping.

Also, you forget one huge point. Once bitcoins can´t be mined anymore, someone is supposed to process the transactions of the network.

And guess who is going to be in the best position to do it?

The huge ASIC miners. So the whole transaction systems will be so centralized that they could be fixing a % for faster processing.

Right now, ASIC devices can´t do anything but mine. I don´t know if in the future they can be modified to do something else, but the point still holds true.

Its not going to be a global peer to peer system anymore.