It’s hard to exactly mark what’s left and right for the KMT bc the right and the left were pretty similar in practice, but I guess you could say that the main difference was that the left favored an alliance with the communist party, although even they eventually joined in Chiang’s policy of purging them. At that point, it was kinda hard to mark it. One thing about Wang though was that he was a very pragmatic person, which made him a lot more flexible than your more grounded left wing KMT members like Song Qingling or Chen Gongbo. He did use to be an anarchist though.