Are you unionised? If so, don't blame the airline, blame the union - in essence, blame yourself.
The airline only cares how much they spend on crew in total, the distribution of that money amongst individuals does not affect their profitability.
Who runs the unions, senior attendants? The ones who live the good life?
You and your fellow "junior" (after 10 years!?) attendants should have a good hard look at the facts of the situation and decide if it is time to take your own action, possibly forming a new union that isn't corrupted by the ones at the top assigning themselves all the dough.
Sounds like the same situation as the food-stamp collection new airline pilots in the US...