Yeah, in that example you're profitable by definition, but is the expansion a result of profits or an attempt to simply make things work? That's why pointing to expansion and saying "Look, profits" simply doesn't cut it.
We don't have a RRSP. We have Social Security where payments are based on income, but I don't believe there is a limit and you don't put in any extra over what is required. Actually, one would be foolish if you could as the return on investment is pathetic. President Bush tried to allow people to invest a portion of their SS, but that didn't go far. Personally, I'd let them have all I've put in if I could manage my own SS account from here on out.