I guess if you and your family can live on benefits you don't need to worry about an injury that stops you working.
I've got an Income Assured policy with Cirecester Friendly Society that has "units" over a term to a selected retirement age. At the end of the term I do get something back (a quick look shows about 1/4 to 1/3 of premiums paid) even if I never claim on the policy, the money doesn't just "disappear" into the insurance Co.