Travel policies are odd things-often set by peopel who do not ravel much.
In many alrge corporations-well alla ctually onlya small proportion of people do 90% of the travelling-oftena lot of ravelling and they do need to be looked after . The one size fits all policy while the senior execs travel on the company jet is common but of course does get people pi--ed off and people decide to miss trips or find reasons not to go.
The only sensible corporate travel policy i ever came across in 35 years of globe trotting was that everyone flew economy except for the very reguar travelers and they flew business even in Europe because flexible tickets- late check ins etc matter a lot if you are doing two or three trips a week but for a trip every thre month Y class is fine.
Overall the verywords travel policy mean we are about to screw you while we at the top have a different set of rules.
If you are avery frequent traveller hold out for J class and invoke medical arguents if necessary-lots and lots of trips are not good for you and if they are in Y they are really bad for you unless you are very young and if you are a rookie you are not likely to travel much.
Good luck