No-one else in this working world gets free trips to the Caribbean for them selves, their whole family and their mates, FOR FREE.
Perhaps not to the Caribbean, but in the days of British Railways, and possibly still in the current franchise era, railway workers had the privilege of cheap travel for themselves and their family at any time (a return ticket for half the published single fare) and a limited number of free tickets each year. Some of these free tickets could be used for journeys outside the UK, to the South of France, for example.
on a slightly different theme, various quotations from legislation and supporting documentation that have appeared on this and the other thread imply that an employer may lock out strikers who attempt to return to work. The only sanction on the employer appears to be that the period during which strike action is protected is extended by the length of the lockout. So sanctions against strikers, including financial sanctions, are permitted. If my reading is correct, there seems to be no case in UK law for the return of discounted travel to strikers, let alone compensation for having to pay full fare to get to work or fly on holiday.