For now only cockpit crew is included in the formulae, and their payscale (though not entirely unrealistic) likely isn't going to have a huge impact on any real route.
For the highly curious, Pilots receive a minimum hourly wage of 20 euros (smallest i saw in USD on will fly for food was $30, so its only two-ish euros shy of that at present), this wage goes up for larger planes (generally following more seats, higher wage.)
Cabin crew will be factored in at a later date, with various effects on demand, but for now they're just flight enthusiasts roaming around the country for free :-P
That's not completely true....
Ok, lets look at this. Most types of A/C use 2 front seaters, so approximately 40 euro per block hour. But if we apply the FAA f/a rules and a general salary of 10 euro per block hour for cabin crew.
Now for example airline A is using a 140 seat a/c and airline B is using a 365 seat a/c on the same route. Airline A has 3 cabin crew for a cost of 30 euro per block hour. Airline B has 8 cabin crew(Remember 1 cabin crew per 50 seats. 50 seats equals 1 cabin crew, 51 seats equals 2.) for a cabin cost of 80 euro per block hour.
Airline A had a total crew cost of 70 euro per block hour, whereas Airline B has a cabin cost of 120 euro per block hour. Now consider this is a 2 hour one-way flight. A single round trip will cost Airline A 280 euro in a trip(2 hour flight/round trip) where Airline B ends with a 480 euro crew cost. Now if cockpit crew on larger A/C cost more(which they should) these numbers increase.
Now take these differences mulitply it across 40 or 50 aircraft, or even the hundreds of a/c operated, typical of the top 50 or so airlines in this game. It does make a sizeable difference.