Bitcoin is a decentralized digital currency for privacy and freedom but politicians are leveraging on it's adoption and popularity to use it's influence for political gains. Remember that during the last US presidential campaigns Trump, became Bitcoin friendly to get the massive votes of Bitcoin enthusiasts. Elon Musk, can do the same thing with Bitcoin to gain popularity for his party because a lot of young people are crypto oriented.

Bitcoin can just be a means to an end for this politicians, their public affiliation to it might just be majorly for political purposes. Bitcoin don't need to be in politics or have politicians singing it's praise for it to keep reaching ATH. Satoshi had already put all the mechanisms in place for it to be the number one currency and asset in the world.