as far as I concern on most of the book I read, they emphasize on protection in the first place.
Because in order for us to earn, we need to physically fit. Then we can continue with our investment ideally. But what of something prevent us from earning the income, accident, sickness etc, if no insurance, what ever money you invested also need to take out, when in hurry, may not profit making also. So if all yhe protection done, can go ahead any accumulation with spare cash.