Science has absolutely engaged in the politics du jour, including in major world wars. See, for example, the Szilárd petition[1]. (If you need a post-WWII example, those same scientists continued petitioning after the war on the dangers of nukes, too.)

Further, political banners in software have absolute helped, and have changed political outcomes. As an example of that, SOPA, and later PIPA, were defeated by websites such as Wikipedia (which are software) putting banners aimed at informing the public of those bills.

[1]: https://en.wikipedia.org/wiki/Szil%C3%A1rd_petition

A petition and including your political opinions whenever you engage in your trade or profession is not the same.

This is the entire point and objection with politicisation of everything.