While legal protection for the right to free speech has come at a price, there is also always a cost of exercising a meaningful right to free speech. Even if one is not directly spending money to speak, external adjudicators can always find an expense related to the exercise of free speech. Whether someone paid for the gas used to drive to a venue to speak or paid for internet access to connect to social media, a financial cost is unavoidable.
It is precisely these inevitable costs that makes laws about campaign finance a menace to freedom of speech.