I suppose it always comes down to that chasm. I'm always surprised when charity alongside evangelism is viewed as wrong or manipulative. Evangelists see evangelism as an essentially honest act sharing a non-coercive message of love. They don't see the message as something dangerous that should be withheld.
Gift-giving alongside evangelism is natural for those who sincerely believe they are offering something good; a gift that will be helpful to those who receive it. At the same time, they are used to the Christian message being perceived in a negative way. It's true that gift-giving also creates an opportunity to present a widely misunderstood message when there might not otherwise not have been an opportunity to do so. This is perceived by the evangelist as simply giving the other person an opportunity to hear a message they might otherwise have dismissed out of hand without hearing the reality.
True Christians don't want to create converts by any means. Free will is at the heart of the Christian faith. They don't want to fleece communities of money or create people who will be under their control. They genuinely believe that Christ has something to offer. Consequently they are most likely to take that message to people who are most 'deserving'; they don't approach vulnerable people because they are easy to convert, but because they are perceived as most in need. It would be a poor sort of person, much less evangelist, who did not approach someone in difficult circumstances with nothing tangible in their hand. The 'message' would, quite rightly, ring hollow.
I understand there are those who believe evangelism is an inherently manipulative act, pushing an agenda that is, at best, of no benefit to anyone. There are ways in which Christianity has created that name for itself and deserves it. However, it's a shame if Christians are more misunderstood and vilified than they need to be. They are capable of good intentions and genuinely charitable acts.
Many conservative Christian organisations believe that practising homosexuality cannot be part of a Christian lifestyle. While I am certainly not putting forward a view on that here, it's reactionary to throw out every charitable venture connected to those organisations on the basis of it. The consequences would be grim for a great many people.