This is true even in those areas of art where the rewards for success can be substantial. For every wealthy film star, there must be a million struggling actors, and twenty million that never get past the just-dreaming stage. A very few can earn their living from the fine art of painting, even the number of those who can earn their living from their skill but must 'prostitute' it to commercial design work of some sort is tiny compared with the number who would love to be doing even that.
Hey! Probably all of us here are more than twenty years old and do not need to be told of this

--- but what I mean to emphasise is that carnatic musicians do not have a harder time than many, many other artists.
In a way, perhaps those resident in Chennai could even be said to be luckier than many. Consider the sheer number of performing slots this city offers each year!
But perhaps that makes the recognition game even more frustrating...