It is relevant in that the loser is the elected nominee for his party and has many people who look up to him and follow his lead. If the loser accepts his defeat gracefully, the people who look up to him are more likely to accept the results and less likely to cause trouble. It doesn’t matter who decides the results and how non-corrupt they are if a corrupt loser sows doubt in the results and makes his followers think they have been cheated, particularly when the majority of his party joins in instead of ostracizing him for being a liar.