Armstronglives, are you aware that Kenyan athletes lived two following Olympic boycotts (1976 like all the African Countries against the aparteid of South Africa, and 1980 because connected with Western Countries like US that refused to participate in Moscow), in a period with Commonwealth Games every 4 years and nothing else ? Not only, but in the same period there was a conflict between Ethiopia and Kenya that reduced possibilities and motivation of their athletes ? Do you really think that an athlete like Henry Rono couldn't be able to win Gold in Olympic or to better more times the WR of 5000 and 10000m, if there was continuity in his competitions and in his training ?
This is like the myth that black people were not talented for swimming or playing tennis. The main reason is that black people were not allowed to go in some pool (also not allowed to use the same buses of white people...) and starting to play tennis required to spend a lot of money, so the only exception was Ashe, but after there were the Williams sisters, and some other good player.
Please, stop to compare sports different for equipment, facilities and local interest, without looking at social problems. Of sure, the European Countries didn't have to face, in the period 1970-1983 (date of the first edition of WCh), the same social problems of African Countries.