In the real world, many businesses aren't created in the Silicon Valley by established founders and friends with VC funds, who can afford the time and cost to have all this.
Edit: To clarify, I am not saying that the things suggested are unimportant or not vital to an established business.. But that the bottom line for a brand new business with very few people involved is to survive and be stable enough to have the change of introduce backing on/off site, distaster recovery plans, paying for pen testing, security consultants, dedicated QA, etc.