Comparing the Skill level in Football and rugby is like explaining why Apples are better than Oranges.... Both games are completely different requiring different skills. If you put Messi in Rugby would he be a Star???? No he wouldn't because his skill set is different. Same with putting Dan Carter in Football. He might be good at some things but would never be a great player... If they had grown up playing the other game who knows where they would have got to (Messi might be hindered by his size though) I don't think you can say one requires more skills than the other.
Your last point is a good one, We all know someone that has played to a decent level in rugby meaning that we think it is relativly easy to make it in the game, Our media is largely Rugby focused (more football is starting to break out recently) meaning that most people probably don't even know about players like Ryan. What page of the paper was it?? Do people even watch the 6 o'clock news any more? With the increase of the Internet most people only read stories that interest them. so if they aren't interested in football they won't read about it.
Sorry if it's a bit long..
I live in Christchurch and can tell you Dan Carter loves football and has played both sports. He was quite a decent footballer actually.
Amusingly, as a young All Black he couldn't keep away from football and occasionally turned out in Mainland Div. 2 for Nomads United, one of the major Christchurch clubs. He preferred to play football in his spare time and never turned out for his own rugby club.
This story attracted attention around the world, especially in Britain:
http://forum.leinsterfans.com/viewtopic.php?f=3&t=2272
"Regulars at the Nomads club have known for some time that Carter has made up the numbers in a friend's team.
One player in the team, who did not want to be named, said Carter had plenty of natural ability. "He's big, strong and fast."
In his last appearance a few weeks ago, Carter put in a handy cross that resulted in a goal, but his team-mate did not think the All Black should "change his day job" just yet. "
________________________________________________________________________________________________________________
On the second point, we've been lucky in Christchurch to have editors at the the local paper the Press who have been pro-football such as former All White and National League player (now Radio NZ CEO) Paul Thompson and Dutch immigrant Coen Lammers, formerly a football reporter in the Netherlands.
That other Ryan, Ryan Nelsen was actually often on the front page of the Press newspaper with news of him playing at Blackburn, and the 2010 All Whites were often on the front page here too.
That signaled a major cultural / sporting shift here in Canterbury.
Football reporter Tony Smith has been the senior sports journalist on the Press for some years now. Dutchman Coen Lammers was sports editor for a while and then became Deputy Editor of the paper.
Lammers is now editor of the Ashburton Guardian in Mid-Canterbury.