worth adding if you divert and come back without passengers then cabin crew are just paid for outbound sector.
Also the way of having around a 1/3 of pay dependent on flying for Ryanair contracts and 100% of pay for Brookfield contracts is bound to encourage people to fly when not well, people still have bills to pay particularly in winter when your not working much, i guess you could say the same about Easyjet flexicrew. You can then add the actual or perceived pressure from company management not to call in sick.