Being an apostle is actually a lot like being a missionary. Apostles may not be alone with a member of the opposite sex (except their families, of course). They have to have someone around, just like a missionary.
Yes a very high paid missionary with lots of nice things and plenty of money to leave to offspring, no paying for it yourself here. A missionary with the finest cars, jets, none of this bike stuff, a missionary who sets his own schedule and doesn't really account to anyone if he chooses to take a nap one afternoon, visit family, or do whatever, a missionary who lives in one fine apartment, none of this dirt floor, commode without a toilet seat, no roof, cold shower etc.
A missionary who enjoys fine dining, not chicken claws and giblets, a mountain of rice, and not enough juice to even wet your mouth. A missioary who doesn't tract or even talk with nonbelievers very often but stays well protected behind church headquarters in an air conditioned lounge where he mainly deals with people who have already been put under his power merely because of what position they hold, and what other people had to do to get these people to that point. A missionary who has the liberty to change the doctrine on the fly if he thinks it will help his sales pitch and PR. A missionary who doesn't even have to learn the language. A missionary who is accountable to nobody but God, and doesn't have to worry about threats of damnation or loss of his monthly stipend if he doesn't baptize enough people.
It seems like a very different mission to me completely.