Professionalism is an attitude, not a job title.
The issue here is nothing to do with who is higher up the totem poll, but rather the demographic of the workforce. Quite simply, pilots generally stay around to retirement, Cabin Crew generally don't (yes, of course some do, but CC does hold a large number of people who do it only for a part - and generally the first part - of a career).
Consequently whats important in a set of T & Cs is totally different, and it spells disaster for the minority group.
A small example, lets say the issue is medical insurance, whether it is or is not to be part of the standard employment package. For a working group with average age in their mid twenties, a sizeable majority won't see this is critically important. For a group with average age 40 something its a big deal.
pb