Meaningless gestures, yes. In the sense that they don't have any tangible positive impact to the club or football or society. It could feel good. It looks good. But it has no impact the way an actual conviction, or an initiative to educate players/people on sexual assault, or an initiative to support victims does. I don't think Partey continuing to play has done any harm in the tangible world. To the contrary, Arsenal benefit from continuing to play him, and they've suffered no atrophy in stadium revenues.
I just looked at Arsenal and United's mission statements and they couldn't be more vacuous.
Most companies will suspend people who have been charged, yes, because the impact on their bottom lines are insignificant. Football players are incredibly more valuable.
My olive branch on this issue is that I would not mind the FA and PL clubs creating a uniform standard by which players accused, indicted and/or convicted of physical/domestic/sexual assault should be charged. Then even if they were just meaningless gestures, there are no arbitrage opportunities for a club without morals to benefit.