Ozbikkies, you are totally wrong.
There is no self interest in this particular case. If I was to be forced to fly lower and use more fuel ( hasn't happened yet) I would simple donate less that year to particular causes I support so my total outgoings would be the same.
Now I know this probably makes you mad - but it's the fact.
But this is not the case with a number of business jet charter operators. A couple I know are really hurting financially from this unique requirement .
Safety will then suffer.
Also I can make a personal decision on whether or not I wish to fly at the lower levels- the airline passenger is not even informed.
You ask. " who told you it is deliberate". What is "it" I don't know what you are actually referring to.