no.. if you do well, nobody else gets hurt by that, actually it adds to the well-being to everybody. poker is a zero-sum game, too. there is a fixed pot, and for someone to get more, others have to get less.
and I don't think it's fair to say praying for X means you don't care about Y, either. though personally, I actually find the idea cynical that god could do something for people, but only does so when asked. so I am not sure if I want to step on that kind of treadmill, where I imagine my prayers to have an effect without ever getting actual feedback. it would seem more sensible to help in more tangible ways. I guess I overthink such things too much to be a very good prayer anyway.
but being grateful for having done well in something which hurts nobody, or that something will go well, for which you did your best to prepare, how could that be bad in any way? one might say it's at the very least simply acknowledging the ultimate say so of god.
but to say you wouldn't wish someone else well because you wish yourself well too, is just silly IMHO. I mean, by that logic, which famine victim should I pray for? and if the answer is "all of them", does that mean lethal diseases are still fine by me?
actually,wait a second.. may everybody find peace and love and happiness, always, amen. solved!
We (Christians) are taught that God will help you even if you don't ask, but that He likes to be asked, anyway. Maybe God just likes for people to talk to Him and they only talk to Him when they want something.