I think he definitely could have been given MORE help, but I also don't think he (or our offense) has been neglected as much as some here think. When he was drafted (or in Shockey and Olsen's case, thereabouts) we had a star #1 WR, two very good RBs (not his fault, or the management's [directly] that the RBs have been more or less misused since Cam has been here), and very good TE in his prime and one good TE a little past his prime. We had more or less a very solid OL that hasn't been planned around well for a few years now. Injuries, age, and bloated contracts that had to be trimmed have deteriorated this once mighty OL.
Now I DO think the picks we've used on trying to get Cam help since he's been here (WRs and OL) have been pretty poorly picked. To this day there's only been 1 offensive pick since Cam was drafted that I had positive feelings about immediately, and that one ended up not even working out well - Adams. Amini might pan out, if I had to guess I'd say he'll turn into at least a decent starter. Obviously we don't know enough about Barner yet (or Kugbilla, though starting out on IR is a pretty bad omen) but I'd give Barner a thumbs up so far. Other than those two or three picks (but possibly none of them in the long run), the choices for offensive help have been much worse than the effort put into it.
- Resign two very good, very productive (in the near past) RBs. I think (and I seem to recall reading something to this effect, but I could be wrong) that Deangelo and Stewart were resigned less out of loyalty (which is the popular opinion) and more to help out the new young QB. They wanted a dependable part of the offense to rely on in the event Cam struggles, and the flexibility to add or subtract burden on Cam based on what they thought he could handle. Again, not his or their faults the running game has been somewhat misused.
- Get him two (for the first year) very dependable TEs. As the saying goes, a good TE is a young QB's best friend. It's been pretty common lately for teams to take a TE high in the draft when they take a QB for this very reason. Luck - Fleener and that other guy, two in one draft. Ponder - Rudolph. Dalton - already had Greshem and took Eifert this year. Ryan - got Tony Gonzalez to help out after Ryan's first couple of years. Kaepernick - already had V. Davis.
- Draft picks. In three drafts, they've taken two WRs, one scat back, two Gs, one T (his own college LT), and one C/G. You could certainly argue that most of the investment in the draft they've made has been too late in the drafts, but in Hurney and Gettleman's defense (pun intended) the defense has been the weaker side of the ball for quite a few years now (excluding 2010 when my high school defense could have been playing for Carolina and it still wouldn't have been the weaker side). It only makes sense to invest in strengthening the weaker side. Next year I see our first three picks going something like this: in the 1st - a WR or OT, in the 2nd - a CB if we took an OT in the 1st or OT if we didn't, in the 3rd - whichever of the three we haven't taken yet. If G is still a need, that should be addressable in FA easily enough. The most affordably anyway. Also, Hurney's obstinate, stubborn attempt to find "the next Steve Smith" has hurt the offense (Edwards, Pilares, Adams).
In summary, in the draft we got Cam in we took a WR and two OL. Four out of eight picks were on offense, and we had glaring needs on defense as well. After his rookie year he showed he didn't need as much help as your average young QB, so they focused more on defense. The only problem with how he's been handled so far, in my opinion, has been the judgement of who has been picked in the draft to help him. Not the amount of help he's been given.