here's just one study.
http://www.tara.tcd.ie/bitstream/handle/2262/98192/Caulfield et al 2022.pdf?sequence=1
"...our findings suggest grants are most prominent in affluent, urban areas with high levels of public transport usage and/or availability. Similarly,Carroll et al. [68] has shown that there are significant pockets of forced car ownership in Ireland and that in these pockets, mainly in rural areas, there are considerably fewer public transport alternatives. Based in our results, we suggest that current grants for EVs privilege high-income people"
So, firstly, this study shows that EVs are by and large owned by wealthy households who already own multiple cars, and are located in areas with easy access to high quality public transport options.
Secondly, a large cohort of society who actually need to use vehicles and do not have access to public transport (almost the entire country outside of cities), do not have access to EV nor to the charging infrastructure required.
If rich people living in affluent areas next to trains and busses buying an EV as their 2nd or 3rd car isn't virtue signalling and conspicuous consumption, I don't know what is.