It's not necessarily inconsistent. You can support improvements to the tax code while also excelling under its current version.
Saying you support then actually making it possible, something that every billionaire can easily do with how super PACs work is an actual choice.
Talking is the cheapest thing you can do and his actions say more. Rather than helping make a free and safer society for Americans, he chose to ignore export bans and work with an adversarial government.
Then again, below is a 2024 article from the NY Times claiming Jensen was taking advantage of loopholes to save $8 billion on taxes. I'm not sure whether playing by the existing rules is a sign that he wants lower taxes at the expense of everyone else, who wouldn't take advantage of loopholes while they exist? Any good accountant would recommend the same. The article:
https://www.nytimes.com/2024/12/05/business/nvidia-jensen-hu...