I mine at deepbit, don't belong to a team (can't see any point - this isn't boinc) and I don't particularly care about the mining programs or squeezing every last bit cent from my GPUs or software. Last time I went to the deepbit site I didn't care to look at any voting stuff (if there is any) - but it tells me my hash speed and earnings.
Perhaps you should take more interest in these issues then. The health of this decentralized network is important, and indeed it will affect you.
I have actually read a great deal on this issue, both the BIP changes, the issues the dev team is having, and the issue of centralisation. Yes it will affect me while I am using bitcoin actively, but the detail and materiality may not.
I also find it unusual to receive pm's telling me I shouldn't mine on Deepbit, and the degree of "evil" associated with it.
So, I am at a pool that has 30% (it was higher), it meets my needs, and has someone who has a service that has attracted a lot of business. However, there might be more centralisation in the dev team, but people are not dismantling that with such gusto.