I love a lil' debate, and I'm gonna challenge this "teamwork" thing for a bit. However, don't take it that I'm against working in a "teamwork" fashion. I just kinda find it amusing that if someone isn't worried about their score, they're a better player for it. So, let me begin:
There's this awful rumor floating around that says, "anyone doing anything, but working with the team in an undisclosed 'teamwork' fashion, is wrong."
I mean, honestly, what is "teamwork?"
Forming a squad, and following orders? Even blindly?
I had a commander, recently, who wanted my squad to take back the palace on Warlord, even though my squad was safe outside, taking back all the other CPs the enemy had already taken. All the while, just about every other player in the match was fighting back and forth, at the palace, in an attempt to kill each other and take the opposing flag on the other side of the palace. I rejected this one order, after accepting many other perfectly good orders, and the commander refused to offer any assistance to our squad afterwards (he gave us the order while 3 AT'rs in the squad, myself included, were pummelling a tank to defend the very front CP we'd just taken back).
How about gaining "teamwork" points?
Does that mean running around tossing medpacs, or ammo, everywhere so that even the enemy can get them? How about revive, re-revive, re-revive, re-revive a teammate who keeps getting mowed down by enemy fire, instead of killing his killer beforehand?
Let's talk about the score issue.
Is it bad that people check the scoreboard every time they get a point? Depends. How far between was the last point they gained to the recent one? Is it an appropriate time? No enemies breathing down your neck, or a teammates?
I look at the score board all the time, and not just to look at my score. I use it as a guide to show how I'm rationally measuring up to EVERYONE ELSE on the scoreboard. If I'm drastically behind in points, to many of the other players on both sides, and I know the reason is because they're contributing more, and I'm contributing less, I work to get up to par. If I'm not measuring up, but I can reasonably see why ("Hey the top two guys on both teams are pilots plane whoring on the ground troops, but not killing each other! WTF?!"), then I can live with a mediocre overall score. At least for a while...
Also, by looking at the score board, it's a good way to get oneself to strive to be better. Hate having more deaths than kills? Yep, me too. OH, WAIT! My team points are pretty high for taking CPs and giving those medpacs, at appropriate times, to teammates that are hurting ("Is that what that health bar's for?!"). Not so bad, now.
Getting kills, and camping, can be perfectly legitimate for "teamwork" in my eyes. At times, mind you.
In my example of Warlord above, the other team would have been completely legitimate in camping our team, if my squad hadn't been taking back CPs outside. If that'd been the case, camp away! You earned it by taking all the posts except one, and no one on our team is moving to take back those lost flags! However, with a five man squad outside, the chances of taking that last flag, and winning the match by total annihilation was gonna be slim. So, they'd had better start getting those CPs back before we're camping their main base (which later wound up happening, in this real match example, btw). Sadly enough, for the other team, their commander was the only one trying to keep all the bases they'd taken from being lost.
So, in conclusion, is a desire for a high score bad? How about a low score?
Not at all on both accounts. If you can rationally explain that you did your best to win the match, and had fun in the process, I think you did good.
Afterall, it's a game, and it's all about having fun. If you're getting upset about other player's actions that are completely out of your control, not doing what you think is "right", you're probably not having fun, and should look for a place that you will have fun (or work with the current situation to make it fun). If, by some slim chance, you can't ever find that place, it might be a good idea to find another "fun" game.