No country will be obliged to include RL players - the sport included in the Olympics is Rugby Union Sevens.
They may invite RL players in some cases, but what with the RU Sevens being so established now, many countries have dedicated Sevens squads, especially the countries where RL is also played.
Now, with an Olympic medal* on the line, does a country stick with an established squad who know each others game and are used to playing as a team? Or do they take a punt on introducing a player from a different code, however talented he may be?
*and, in Rio, the glory of being the first Olympic champions at Sevens ever - an extra-special bit of posterity.
Thanks for that, understand your reasoning.
Thought I would just "Google" Olympic Rugby, it was actually played at the 1924 games in Paris, there were only three teams competing, they were such luminaries as Romania, USA and France, with USA getting the gold followed by France silver and Romania bronze.
Apparently there are a number of qualifying rounds taking place around the globe in 2014/15 with 12 places available at the tournament proper in both the mens and womens competitions.
Interesting to also read that in effect players from Mainland Britain can still have the opportunity to play even if their national team does not qualify i.e.
"To solve the problem of Great Britain competing as one union in the Olympics and as several in International Rugby (England, Wales, Scotland) should one team qualify (England, Wales or Scotland) than Great Britain will be awarded a spot in the Olympic Games. The three unions will then decide the composition of the Great Britain team. Please note that Northern Ireland is part of the Irish Rugby Football Union. Qualification for the Women's tournament has yet to be decided."