Lots of people travel to places outside the US where none of these things can be taken for granted. I think most of them are sane humans.
In 2013 two people died in a Best Western hotel (in the US) due to an improperly and illegally installed water heater. Seven weeks after that, one more person was killed in the exact same way, in the very same room. [1]
Are you sure conventional hotels "ensure" safety?
[1] http://www.charlotteobserver.com/news/special-reports/nc-med...