Buttigieg's fundraising does not automatically mean he would win in an election. While his money may come from both large and small donors, his courting of high profile donors shows he is not in touch with working class constituents. Most notably, his fundraiser in a 'wine cave' in December 2019 drew considerable criticism.
At the event, supporters could either spend $1,000 to have a photo taken with Buttigieg or $2,800 to participate in a dinner with him. This raises concerns about the role of access. While all voters may have the right to decide who they want to vote for and where they want to donate money regardless of amount, large donations buy access to Buttigieg in a way grassroots donations do not.
Buttigieg does not understand the insidious nature of money in American politics.