Tourism brings a lot of benefits that helps the country to develop further, while there are plenty of negatives, let's consider the positives first.
When we consider the benefits, we must consider the society, the economy, and the culture. There are no environmental benefits as tourism destroys nature to build hotels, and other infrastructures. However, Phuket can have environmental benefits with eco-tourism or sustainable tourism because the profit raised from tourists are used for sustaining nature.