Artists are constantly surrounded by people who, for better or worse, offer advice and try to guide them into something that is more palpable to the mainstream. I can understand that if something is marketable, it is much easier to emulate that, then to set out on your own uncharted path.
While there is something to be said for the collective conscious with many artists working in similar styles and genres, trying to change your voice to fit into the mainstream is never a lasting solution to a creative fork in the road.
I truly believe that artists should always follow their own voice. The key to being a great artist is to communicate your message honestly to the viewer. You can’t do this when you are trying to please people by giving them what you think they want. Find the people who believe in what you are doing, even if it feels like you are going against the grain. It takes time to build your unique fan base, no one does this over night.
Trends change, time passes and the artists who endure are those who were not afraid to have their own voice. The goal of any artist should, first and foremost, be to create work that you are proud of. Being able to make your living doing what you love is ultimately a gift and in the end, that is the truest measure of success.