You do realize, the motor industry is improving safety constantly, every year there comes another model with something improved, that is throughly tested. You have X generation seat belts, specially designed seats, XXX number of airbags etc. etc. When was the last revision of R22 airframe ? How many crash tests were conducted on it ? And lastly, how many % of car accidents result in fire ? That is a very small % compared to helicopters.
Lets face it, aircraft industry is painfully slow. How old are those Bell 47 that people still train in ? And still are considered useful, while that old cars in most western world can't be registered as easy as today's Mondeo as they're considerate dangerous!
Another question, how many training... actualy, any small helicopters can pass newest revision of FAA FAR part 27 ?
Unfortunatly, with ecception of KNIEVEL77 case, It's mostly all personal risk assesment - to wear nomex and helmet, or not.