I get that sentiment. Most of the time I agree with it. But if the mentality is, "I don't have much free time to sink into this, but I want all the cool toys.", then I'm afraid Creative might be the best place to do that. If someone was to tweak ore gen into closely packed, large veins of all the ores, all it would take is 10 minutes with a TiCo hammer to achieve enough resources to build whatever you want. Why not save the 10 minutes, since you're so short on time, and just spawn it in?
I'm not trying to be a dick, or tell anyone else how to play. I don't have much free time to play, myself, but I chip away at a world and make my mark on it as I go. I've been slowly working towards making my base (and a number of other projects) for nearly three months now, and I've only begun to scratch the surface of my end vision. I enjoy the adventure, exploration, sense of accomplishment, and architecture that Minecraft offers. If I were to cheat that by handing myself all the ores I could carry, I would lose three quarters of the experience, and what was left would be simpler to do in a creative environment. Again, one man's opinion.