Why would it be fair for someone of equal skill to be able to afford [less food, less healthcare, less living space and fewer gadgets] for themselves just becau

Why would it be fair for someone of equal skill to be able to afford [less food, less healthcare, less living space and fewer gadgets] for themselves just because they have a [smaller family and fewer kids to support]? Generally what [your employer does] with [your employer's] money should not be [your] business. This seems irreconcilable.