If you are in companies like BA, easyJet, Virgin etc there is simply no culture of pushing any limit.
Except in Easyjet it pushes the limit every day by dispatching its aircraft with barely experienced disenfranchised contract f/o's.
Also, when a strike was looming at one stage, during a phone call between the pilot representative and a very senior company Executive, it was mentioned that the pilot representative had a beautiful little daughter who attended such and such a school and would it not be a shame if something terrible happened to her?
This airline was well known to have had close links with a certain Sicilian syndicate.