There should be no reason why you cannot be that A, if you learn the material well and are able to take tests well. You have to play the game, and there just aren't as many options in a lot of schools now, sometimes sections are only taught in the fall, or two sections are taught but one is at night, and/or one is super early in the morning, which, depending on your schedule and responsibilities, may not be convenient.
Moreover, I find the opposite experience, that in a lot of places, grades are inflated. I've been in classes where exam averages are in the 60s, let say a 62 for argument's sake, and it gets normalized to 70 for it to be a "C". 70-79 = C, 80-89 = B, 90-100 = A, and some throw in minuses for fun. That looks way better than having the majority of the class get a D or F, I guess, but it also makes my mid-upper 90s work look less meaningful when I'm compared to someone that got a low-mid 80s the entire semester and ended up with the same grade as me. But.. I am not bitter, I promise.
I'm a nontrad, and it's annoying to hear people whine about grades now, or pray to the "I-hope-there's-a-curve" gods. You should prepare yourself for classes in such a way to put your best foot forward and give yourself the best chance to be successful, and not prepare yourself in such a way that you are at the mercy of the curve. PSA over.