is creating a new wikipedia page still worth the effort?

Only if the subject is genuinely notable, meaning several independent, reliable sources have written about it in depth. Press releases and your own blog don't count. If that coverage isn't there, the page gets flagged and deleted, sometimes within days, and that's the effort wasted. And go in knowing the links are nofollow, so it's not a link play. The real upside is that Google often pulls from Wikipedia for knowledge panels. Writing about your own company also counts as a conflict of interest there, so you're expected to declare it.