I mean, there's countless examples of players coming from lower leagues and doing well at bigger clubs
Seamus Coleman came from Sligo Rovers
Just because a player is in a lower league or a league not as competitive as ours doesn't mean we shouldn't take a look at them if they show promise.
Stuff like this is why the national pool is so poor at the moment. Young kids do well at Brentford or Crawley or Burton Albion but they never get the chance because they didn't come from a top clubs youth system and had the temerity to learn their trade lower down the leagues (See Rickie Lambert)
To use a wrestling analogy (Which Ijjy will get), saying you shouldn't buy a player from Scotland is like saying WWE shouldn't bring in an ROH guy becaue ROH is lower than WWE. Daniel Bryan and CM Punk, two of their biggest stars, came from ROH and perfected their craft in the lower leagues. Compare them to someone like Rene Dupree, who came in the WWE system and got chance after chance despite showing no real aptitude.
Where you come from doesn't matter, it's the skill you have that does