Not if it costs money. I disagree, there are airlines that are much safer than others. Safety improvement is not limited to programs and policies, culture is a much larger driver of safety than these defined boxes of safety management systems
As an industry insider, yes. But we are talking about factors that drive public perception and ticket buying.
To the uneducated public jet=safe, prop=less safe. More engines=safer. Bigger jet=safer.
You could have a first-rate prop operator and a dirtbag jet operator, and the public will assume the jet is safer. Because they are ignorant and emotional in their decision making.
Also, please remember that I was talking legacy carriers ONLY, in the above post. The safety levels there are more similar than different.
So my original point still stands: Safety, service, on-time are all elements people care about, but it is not possible to grow an airline by SELLING those factors to the customer.
Is a more safe airline probably more profitable because of fewer incidents? YES!! But that is COST-control, not profitability through better marketing.
I will estimate that 80% or more of the public's ticket-buying decision comes down to cost, provided similar departure time and number of connecting flights.
The industry has mostly matured, and it is a game of inches and cost-control, and hoping your competition screws up and loses money.
There is little room for innovation, and even if you innovate, your method is easily copied, eliminating the advantage.