First off, what do airline pilots know about inspections and costs? Zero.
Don't believe me? Ask them to produce one receipt for parts, let's see them produce one maintenance logbook for any of the planes they fly....they can't, won't and so they simply regurgitate the robotic gospel that they are told by the chief pilot.
Leases come in so many varieties it's almost impossible to cover all the bases...ownership as well...some people own the planes, but not the engines, some lease the planes and own the engines..depends all on money, and some bean counter's idea of what will keep costs down...surprise surprise that many airlines are bleeding cash as they can't keep their aircraft cost down, despite having all the sweetheart factory support and their own mechanics.
That said...derated departures are sold to the pilots to 'save' engines...burning up runway, lower obstacle clearance, so that the mechanics can trend monitor the engines out as far as allowed.....
So it all depends on what 'expert' is telling you how to fly a plane...
Take a cue from the guys that own the planes, pay the bills, and actually flying them...they don't want to die, that takes precedence over profits, so they get off the ground as quickly as they can, and over the hills as quick as they can.