Certainly many of them do, but there are also plenty of people who want to focus on investments that also have a positive impact: https://en.wikipedia.org/wiki/Socially_responsible_investing

One specific example of a robo-advisor that does this: https://www.wealthsimple.com/en-us/feature/socially-responsi...

As long as there was no attempt to misrepresent the content of the stew then the vegetarians are likely not actually as concerned about their diet as they may have claimed.