It is really useful.
At present, the first-class fire engineer seems to have low economic benefits, but the purpose of fire fighting is to prevent and put an end to fires. As we all know, there are not a few people who are prone to double-digit deaths in fires, and economic losses abound with the development of society. Fire engineers serve enterprises. Enterprises with a first-class fire engineer (full-time) will not have a fire if they don't say 100%, at least the probability of a fire is extremely low.