Because helicopter pilot's want a job flying helicopters  

You really are a special kind of special.  The government does subsidize the airlines, rail, gas, stock market, etc.

Just because they deregulated the airlines does not mean that they don't get tax breaks and right off the other people can't get. That is why you only see new airlines starting up that have a parent company and not a brand new company.

The government does this and uses crony capitalism to keep people out.  If there was less regulation and more opportunity there would be lower prices and better serves.  

The same goes for HAA companies, they get federal money that prop up to many bases and that intern leads to the problem we have today.

To many bases, low pay, low hour requirements higher accidents rates.  All because the individual can't argue for whats best for him or her.

Take a basic economic class online or YouTube it for free.