Jobs is responsible for Apple's success. For repeatedly creating devices that have disrupted industries. RMS deserves credit for his contributions, but it is not all-thanks-to-him that we have FOSS.
Yes Apple's software has been closed. But has this been at the expense of FOSS, as RMS claims?
Has Apple actively tried to subvert the GPL by lobbying governments to avoid FOSS? Has Jobs publicly whined about the GPL? Has he engaged in OOXML-esque bad-faith efforts to keep data formats proprietary?