I can't imagine what you've observed, but there is absolutely nothing "left-leaning" about Objectivism. You can say what you want about Rand, but she detested the left. Her entire work was dedicated to destroying the left and its authoritarian, faux-altruist philosophy.
Study up on the philosophy; it will give some context to your observations.
I’m amused at how a few people are offended that I have personally observed by people who are rabid ayn followers - and find them only fiscally conservative.